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Random Sampling 7PAR4.11

Total questions: 174

Worksheet time: 9hrs 20mins

Name
Class
Date
1.

A ______ is the entire set of objects from which data might be collected

a)

sample

b)

population

c)

sample statistic

d)

population characteristic

2.

A _______ is a subset or part of the population that you can collect data from.

a)

sample

b)

population

c)

sample statistic

d)

population characteristic

3.

True or False:

All samples lead to a good prediction about the entire population.

a)

True

b)

False

4.

A student wants to know which type of of pizza middle school students prefer. Which of the following options is a good, representative sample of the population?

a)

Asking all of the 5th graders

b)

Asking 20 students from each grade level in the middle school

c)

Asking all of the teachers

d)

Asking the students who walk to school each day

5.

A beverage company wants to see if people in the United States like their new logo. Which of the following represents the population?

a)

2,000 middle school students

b)

A selection of logo designers

c)

A selection of shoppers from different states

d)

All of the people in the United States

6.

A beverage company wants to see if people in the United States like their new logo. Which of the following would be the best selection for a sample.

a)

2,000 middle school students

b)

A selection of logo designers

c)

A selection of shoppers from different states

d)

All of the people in the United States

7.

Which of the following is NOT a reason why random samples are preferred over surveying the entire population.

a)

A random sample allows you to survey whoever you are friends with

b)

Surveying the entire country may cost too much money

c)

Surveying the entire population may take too much time

d)

Surveying the entire country may be difficult if everyone does not respond

8.

For which of the following situations would you want to collect a sample rather than surveying the entire population?

a)

The typical number of home runs for a player on the local baseball team

b)

How many students in our class like mushrooms on pizza

c)

How many students in our class have more than one pet

d)

The median price of homes in Ohio

9.

A toy store owner wants to know how much kids spend each month on toys. Which choice is the best representation of the population?

a)

220 wealthy kids

b)

All kids who buy toys

c)

100 boys between ages 8 to 12

d)

125 girls between ages 4 to 10

10.

Ana wants to know the average student’s opinion of the tardy policy at her school. Which group of students should she survey in order to achieve the most accurate results?

a)

30 of her friends

b)

30 randomly selected students in the school

c)

30 students who are often tardy

d)

30 students who are often on time

11.

A school principal wants to see which subject the 695 students in his school liked best. Which choice BEST represents a representative sample?

a)

All girls in the school

b)

All students who have an A in Social Studies

c)

All students who are failing science

d)

1 class from each grade level

12.

True or False:

You want to see how many students take the bus home from school. You go to the bus stop and ask students how they get home everyday. This is a good, representation of the population.

a)

True

b)

False

13.

1. For a class assignment, Tyler will conduct a survey to find out what students like to do after school. He asks the first 10 people he sees in the gymnasium before school what they like to do after school. Which statement correctly explains whether Tyler's sample is a random sample?

a)

Tyler’s sample is not random because he only asks 10 people

b)

Tyler’s sample is not random because he asks people in a gymnasium.

c)

Tyler’s sample is random because he asks the first 10 people he sees.

d)

Tyler’s sample is random because he asks each person the same question

14.

1. For a class assignment, Tyler will conduct a survey to find out what students like to do after school. He asks the first 10 people he sees in the gymnasium before school what they like to do after school. Which statement correctly explains whether Tyler's sample is a random sample?

a)

Tyler’s sample is not random because he only asks 10 people

b)

Tyler’s sample is not random because he asks people in a gymnasium.

c)

Tyler’s sample is random because he asks the first 10 people he sees.

d)

Tyler’s sample is random because he asks each person the same question

15.

Andre wants to survey a random sample of the student body in his school to find out which day after school would work best for students to do volunteer work for a local charity. Which

sample would best represent the student body?

a)

asking twenty students waiting in line for lunch

b)

asking twenty students on their way to the bus after school

c)

asking one person from the seventh grade daily for twenty days

d)

asking one person each from twenty different classrooms during the first class period

16.

Four candidates are running for school president. A random sample of students at the school are surveyed about which of the candidates they are likely to choose. The chart above shows the number of students from the random sample who chose each candidate.


A total of 800 students are expected to vote in the election for school president. Based on the information shown in the chart, which election outcome is most likely?

a)

Rasheed will win with 192 votes.

b)

Rasheed will win with 189 more votes than he had in the survey

c)

Janelle will win with 8 more votes than the second-place finisher, Rasheed.

d)

Janelle will win with 128 more votes than the second-place finisher, Rasheed

17.

4. Customers in two randomly selected groups at a yogurt shop are asked their preference of yogurt flavors. The responses for the customers in each group are summarized in the table above.


Based on the information shown in the table, which statement best describes the preferences of the customers in the two groups?

a)

In both groups, more customers prefer peach-flavored yogurt than either of the other two flavors.

b)

In both groups, fewer customers prefer vanilla-flavored yogurt than either of the other two flavors.

c)

In group 2, the same number of customers prefer strawberry-flavored yogurt and vanilla-flavored yogurt.

d)

In group 1, more customers prefer either strawberry-flavored yogurt or vanilla-flavored yogurt than peach-flavored yogurt.

18.

Lee will conduct a survey at his school. He will select a random sample of students at the school to take the survey. Which sample is the best random sample for Lee to use?

a)

every other student in the drama club

b)

every fifth student who enters the school

c)

every student who rides the same bus as Lee

d)

every fourth student in Lee’s homeroom class

19.

Which statement best describes a random sample of all students in a middle school?

a)

Of all the students who are on the track team, the first three to finish a race are selected.

b)

Of all the students who are in the drama club, every third student on the roster is selected.

c)

Of all the students who complete an assignment, the first, third, and tenth students are selected.

d)

Of all the students who attend a school-wide assembly, those sitting in every third seat are selected.

20.
Susan polled 587 people throughout each city in her county.  Each city is the same size.  Is this sample of the residents of cities in the county likely to be biased?
a)
yes
b)
no
21.
Eric surveyed 402 employees at the company who worked in Marketing.  Is this a random sample of the employees at the company in general?
a)
yes
b)
no
22.
Josie threw a handful of identically shaped buttons into the air, then collected the 27 buttons that landed in a target on the floor.  Is this a random sample of the buttons?
a)
yes
b)
no
23.
Leslie surveyed the 9 youngest students in the elementary school.  Is this sample of the students in the school likely to be representative?
a)
yes
b)
no
24.
Henry surveyed the first 7 celebrities to arrive at the movie premiere.  Is this sample of celebrities likely to be biased?
a)
yes
b)
no
25.
Patrick polled the first 27 people to attend the WMS band concert.  Is this sample of the concert attendees likely to be representative?
a)
yes
b)
no
26.
Colton polled 22 people at the town senior center.  Is this a random sample of the town residents?
a)
yes
b)
no
27.
Starla polled the 2 customers who had been going to a particular barbershop the longest.  Is this sample of the customers likely to be representative?
a)
yes
b)
no
28.

A school principal wants to know how teachers are liking the new rules she put in place. She surveys all the math and science teachers. Is this a biased sample or unbiased sample?

a)

Biased Sample

b)

Unbiased Sample

29.

A high school is going to have a party for their graduating seniors. They want to serve food that most of the seniors like. They pick 25 random names from a hat and survey those students. Is this a biased sample or unbiased sample?

a)

Biased Sample

b)

Unbiased Sample

30.

Casey surveyed the members of his soccer team to ask them what their favorite sport is. Is this a biased sample or unbiased sample?

a)

Biased Sample

b)

Unbiased Sample

31.

A school district wants to know if parents would prefer to get phone calls or emails from the schools. They survey the parents of all the seventh grade students enrolled in the district. Is this a biased sample or unbiased sample?

a)

Biased Sample

b)

Unbiased Sample

32.

Shelley wants to survey grocery shoppers about their favorite brands. She goes to the store at 8am and surveys the first 50 people. Is this a biased sample or unbiased sample?

a)

Biased Sample

b)

Unbiased Sample

33.

Green Valley Middle School conducted a survey of 125 random students asking them how much time they spend each night on homework. Is this a biased sample or unbiased sample?

a)

Biased Sample

b)

Unbiased Sample

34.

An airline wants to know if people prefer to check their luggage or carry it on. They ask every 10th person that walks into the airport. Is this a biased sample or unbiased sample?

a)

Biased Sample

b)

Unbiased sample?

35.

Debbie surveyed all the students who ride the bus to school to find how long they take to get ready in the morning. Is this a biased sample or unbiased sample?

a)

Biased Sample

b)

Unbiased Sample

36.

A middle school surveyed random students to find out which elective the students want to take next year. The results are shown here. How many total students were surveyed?

a)

20

b)

40

c)

14

d)

6

37.

Based on the results of this survey, which elective was least popular and should be canceled?

a)

Spanish

b)

Theater

c)

Art

38.

A ______ is the entire set of objects from which data might be collected

a)

sample

b)

population

c)

sample statistic

d)

population characteristic

39.

A _______ is a subset or part of the population that you can collect data from.

a)

sample

b)

population

c)

sample statistic

d)

population characteristic

40.

True or False:

All samples lead to a good prediction about the entire population.

a)

True

b)

False

41.

Which statement best describes a random sample of all students in a middle school?

a)

Of all the students who are on the track team, the first three to finish a race are selected.

b)

Of all the students who are in the drama club, every third student on the roster is selected.

c)

Of all the students who complete an assignment, the first, third, and tenth students are selected.

d)

Of all the students who attend a school-wide assembly, those sitting in every third seat are selected.

42.

A beverage company wants to see if people in the United States like their new logo. Which of the following represents the population?

a)

2,000 middle school students

b)

A selection of logo designers

c)

A selection of shoppers from different states

d)

All of the people in the United States

43.

A beverage company wants to see if people in the United States like their new logo. Which of the following would be the best selection for a sample.

a)

2,000 middle school students

b)

A selection of logo designers

c)

A selection of shoppers from different states

d)

All of the people in the United States

44.

For which of the following situations would you want to collect a sample rather than surveying the entire population?

a)

The typical number of home runs for a player on the local baseball team

b)

How many students in our class like mushrooms on pizza

c)

How many students in our class have more than one pet

d)

The median price of homes in Ohio

45.

A toy store owner wants to know how much kids spend each month on toys. Which choice is the best representation of the population?

a)

220 wealthy kids

b)

All kids who buy toys

c)

100 boys between ages 8 to 12

d)

125 girls between ages 4 to 10

46.

Ana wants to know the average student’s opinion of the tardy policy at her school. Which group of students should she survey in order to achieve the most accurate results?

a)

30 of her friends

b)

30 randomly selected students in the school

c)

30 students who are often tardy

d)

30 students who are often on time

47.

A school principal wants to see which subject the 695 students in his school liked best. Which choice BEST represents a representative sample?

a)

All girls in the school

b)

All students who have an A in Social Studies

c)

All students who are failing science

d)

1 class from each grade level

48.

True or False:

You want to see how many students take the bus home from school. You go to the bus stop and ask students how they get home everyday. This is a good, representation of the population.

a)

True

b)

False

49.

1. For a class assignment, Tyler will conduct a survey to find out what students like to do after school. He asks the first 10 people he sees in the gymnasium before school what they like to do after school. Which statement correctly explains whether Tyler's sample is a random sample?

a)

Tyler’s sample is not random because he only asks 10 people

b)

Tyler’s sample is not random because he asks people in a gymnasium.

c)

Tyler’s sample is random because he asks the first 10 people he sees.

d)

Tyler’s sample is random because he asks each person the same question

50.

Andre wants to survey a random sample of the student body in his school to find out which day after school would work best for students to do volunteer work for a local charity. Which

sample would best represent the student body?

a)

asking twenty students waiting in line for lunch

b)

asking twenty students on their way to the bus after school

c)

asking one person from the seventh grade daily for twenty days

d)

asking one person each from twenty different classrooms during the first class period

51.

Lee will conduct a survey at his school. He will select a random sample of students at the school to take the survey. Which sample is the best random sample for Lee to use?

a)

every other student in the drama club

b)

every fifth student who enters the school

c)

every student who rides the same bus as Lee

d)

every fourth student in Lee’s homeroom class

52.
Eric surveyed 402 employees at the company who worked in Marketing.  Is this a random sample of the employees at the company in general?
a)

yes

b)

no

53.
Leslie surveyed the 9 youngest students in the elementary school.  Is this sample of the students in the school likely to be representative?
a)

yes

b)

no

54.
Patrick polled the first 27 people to attend the WMS band concert.  Is this sample of the concert attendees likely to be representative?
a)

yes

b)

no

55.
According to a random telephone survey of 200 adults, 75% of all working adults in the U.S. are satisfied with their current job. What is the population in this survey?
a)
200 adults
b)
adults in the U.S.
c)
75% of adults
56.
Zoie completes a report by asking 70 students across campus. She found that 48% of CTMS students do not wash their hands after using the bathroom. What is the sample size?
a)
48
b)
100
c)
70
d)
CTMS students
57.
A recent survey of 800 seventh graders from across the state shows 4 out of 10 like to play paper football. How many students said they like to play paper football?
a)
40 students
b)
200 students 
c)
320 students
d)
8,000 students
58.
a)
A
b)
B
c)
C
d)
D
59.
A school randomly chose ten English teachers and asked them which type of juice their students would prefer. Which reason best shows why this sample is not a good sample in this case?
a)
The sample didn't include students.
b)
The sample is too small.
c)
The sample can only be accurate if each teacher is included in the sample
60.
Ana wants to know the average student’s opinion of the tardy policy at her school. Which group of students should she survey in order to achieve the most accurate results?
a)
thirty students who are often tardy
b)
thirty students who are rarely tardy
c)
thirty of her friends
d)
thirty randomly selected students from her school
61.
The entire group studied is called the
a)
sample
b)
population
62.
The part of the population being studied is called the
a)
population
b)
sample
c)
random
63.
A U.S. senator from Maine wants to find out the opinion of the voters in his state on issues concerning education.  The office of the senator passes out surveys on ten street corners in the five major cities in the state of Maine.  Is this random?
a)
Yes
b)
No
64.
Leslie surveyed the 9 youngest students in the elementary school.  Is this sample of the students in the school likely to be representative of all the students in the school?
a)
yes
b)
no
65.
Are these dot plots symmetric?
a)
Yes
b)
No
66.
What is the MEAN for this data?
a)
80
b)
1040
c)
13
d)
81
67.
What is the highest score in the class?
a)
88%
b)
100%
c)
13
d)
98%
68.
How many students received a score of 94%? 
a)
94
b)
4
c)
1
d)
2
69.
How many students received a score in the 80's?
a)
2
b)
10
c)
14
d)
27
70.
How many total students are in the science class?
a)
13
b)
6
c)
27
d)
25
71.
How many students scored between 95 and 100?
a)
6
b)
13
c)
9
d)
14
72.
What is the difference between the highest score and the lowest score on the test?
a)
15
b)
100
c)
6
d)
10
73.
The mean is
a)
The middle score
b)
 Total & divided by number of scores
c)
The most frequent score
d)
The middle when in order
74.
How many total people took the survey?
a)
50
b)
150
c)
100
d)
200
75.

The office clerk gave the researcher a list of 500 Grade 10 students. The

researcher selected every 20th name on the list.

a)

Simple Random

b)

Systematic

c)

Stratified

d)

Cluster

76.

In a recent research that was conducted in a private school, the subjects

of the study were selected using the Table of Random Numbers.

a)

Simple Random

b)

Systematic

c)

Stratified

d)

Cluster

77.

A researcher interviewed people from each town in the province of Albay

for his research on population.

a)

Simple Random

b)

Systematic

c)

Stratified

d)

Cluster

78.

A researcher is doing a research work on the student’s reaction to the

newly implemented curriculum in Mathematics and interviewed every

10th student entering the gate of the school.

a)

Simple Random

b)

Systematic

c)

Stratified

d)

Cluster

79.

A researcher who is studying the effects of educational attainment on

promotion conducted a survey of 50 randomly selected workers from

each of these categories: high school graduate, with undergraduate

degrees, with master’s degree, and with doctoral degree.

a)

Simple Random

b)

Systematic

c)

Stratified

d)

Cluster

80.

A researcher selected a sample of 𝑛 = 120 from a population of 850 by

using the Table of Random Numbers

a)

Simple Random

b)

Systematic

c)

Stratified

d)

Cluster

81.

A researcher interviewed all top 10 Grade 11 students in each of 15

randomly selected private schools in Metro Manila.

a)

Simple Random

b)

Systematic

c)

Stratified

d)

Cluster

82.

A researcher randomly selected 10 barangays in a town for her study.

She did this by writing the names of each barangay on a piece of paper

which she folded and put in a bowl then she draws 10 pieces of each

paper from the bowl.

a)

Simple Random

b)

Systematic

c)

Stratified

d)

Cluster

83.

A teacher asked her students to fall in line. She instructed one of them to

select every 5th student on the line.

a)

Simple Random

b)

Systematic

c)

Stratified

d)

Cluster

84.

A researcher chose the subjects of her study by selecting every kth

member of the population.

a)

Simple Random

b)

Systematic

c)

Stratified

d)

Cluster

85.

For a school project, three students need to produce a sample of students at their school. Which of the following methods leads to a random sample?

a)

Numbering all the students and produce the sample from a random list of numbers

b)

Calling for volunteers at the school assembly

c)

Calling for volunteers via social media

d)

Asking each of their friends to name three further friend2

86.

An elementary school principal wants to evaluate the teaching quality of the school by collecting data from a sample of students. Which of the following is not a suitable stratum to be used to collect the sample?

a)

gender

b)

grade level

c)

race

d)

first name

87.

At a local golf club, there are 50 male members and 30 female members. A representative sample of 10 random male members and 6 random female members is chosen. Which of the following is the sampling method used?

a)

simple random sampling

b)

systematic random sampling

c)

stratified sampling

88.

Poole wants to know how students at OV rate the school lunch. I surveyed my IB Psych class to rate the food. Is this a biased sample of the school's population?

a)

Yes because it is a convenience sample. The sample is asking a very specific group that may not accurately match the population.

b)

No, the IB Psych class has the smartest students and the best foodies.

c)

Yes, because it is a voluntary survey that only interested students took.

d)

No, Poole should have asked the culinary class since have more experience with food.

89.

You want to know what is the favorite sport for Sophomores at OVHS. You ask 10th graders who want to participate to go to the office during their lunch period to complete a survey. This is...

a)

Biased, no one likes sports.

b)

Biased, people were randomly selected.

c)

Unbiased.

d)

Biased, it is a volunteer sample, meaning only interested people complete the survey.

90.

To find out what sort of events they should plan, the student government officers at OVHS send a survey to 40 students, 10 in each grade, whose names were randomly selected. The population they are interested in is...

a)

only the 30 OVHS students

b)

all students at OVHS

c)

only students who respond to the survey

d)

all high school students in HB

91.

For a class assignment, Tyler will conduct a survey to find out what students like to do after school. He asks the first 30 people he sees in the gymnasium before school what they like to do after school. Which statement correctly explains whether Tyler's sample is a random sample?

a)

Tyler's sample is not random because he only asks 30 people

b)

Tyler's sample is random because he asks only the first 10 people he sees

c)

Tyler's sample is not random because he asks people in a gymnasium, which could skew his results to sports

d)

Tyler's sample is random because he asks each person the same question

92.

involves simply asking anyone who happens to be there if they would like to participate.  For instance, asking students in the library if they would be willing to complete a survey.

a)

random sampling

b)

convenience sampling

c)

volunteer sampling

d)

snowball sampling

93.

is when every person in the target population has an equal chance of being sampled.  Typically, researchers will have the names of every person in the target population, and will select names at random.  This method is often used in telephone surveys before an election - every telephone number has an equal chance of being selected.

a)

random sampling

b)

convenience sampling

c)

volunteer sampling

d)

snowball sampling

94.

Identify the sampling method used in this situation. 

Select three JV and three Varsity basketball players to receive ice cream by putting the JV names in one hat and all the Varsity names in a different hat and picking out three names from each hat. 

a)

Simple Random

b)

Systematic

c)

Stratified

d)

Cluster

95.

Identify the sampling method used in this situation. 

A video store wants to know what PS3 games are most popular in the state. It surveys people that come into its store.

a)

Simple Random

b)

Systematic

c)

Stratified

d)

Convenience

96.

Identify the sampling method used in this situation. 

A teacher wants to know what percent of students read the chapter.  He asks a few students in his class. 

a)

Simple Random

b)

Stratified

c)

Cluster

d)

Convenience

97.

Students at North River High School are assigned to home rooms with 25 students each. You randomly select 4 homerooms and gather data from each of the 100 students in these classes.

What type of sampling method was used?

a)

Simple Random

b)

Cluster

c)

Stratefied

d)

Systematic

98.

If you choose 5 bingo balls from a basket of 50 balls, what sampling technique are you using?

(a)  

99.

Which of the following doesn’t result in some form of bias?

a)

Choosing AP students to survey regarding their GPA in order to estimate the average GPA in a school.

b)

Polling a group of potential voters outside a Republican campaign office in order to estimate the proportion of city residents who favor a particular candidate.

c)

Surveying people who work in the marketing department of a large corporation in order to assess employee satisfaction with management policies.

d)

Choosing a stratified random sample of juniors and seniors at a high school in order to estimate the proportion of juniors and seniors who plan to go on to college.

e)

Asking shoppers leaving a grocery store if they think groceries should cost less in order to estimate the proportion of city residents who think groceries cost too much.

100.
A factory manufactures light bulbs. The factory currently has 300 boxes of light bulbs in its warehouse. To test the quality of bulbs, Alex decides to take out a sample of bulbs and test them to see if they work. Which surveying method will give him the least valid results?
a)
selecting ten boxes randomly, mixing the bulbs of these boxes together and then selecting ten bulbs randomly
b)
selecting ten boxes randomly and then selecting one bulb randomly from each box
c)
selecting one bulb randomly from every tenth box
d)
selecting one box randomly and then selecting all the bulbs from the box
101.
True or False: all samples lead to a good prediction about an entire population.
a)
True
b)
False
102.

To avoid working late, the quality control manager inspects the last 10 items produced that day.

a)

Convenience

b)

Random

c)

Self Selected

d)

Systematic

103.

You want to know which store shoppers at the mall visit the most. You ask every 10th person as they enter the mall which store they visit.

a)

Random

b)

Not Random

104.

You want to know what the 7th grade students think of their science class. You poll 100 random 7th graders.

a)

Random

b)

Not Random

105.

A hip-hop radio station wants to know what type of music is the most popular. They ask their listeners to call in and select their favorite type of music.

a)

Random

b)

Not Random

106.

The owners of a local game store put all their customers' email addresses in a hat. They draw 150 names and email them a customer survey.

a)

Random

b)

Not Random

107.

You ask 50 people in your local grocery store which grocery store is their favorite.

a)

Random

b)

Not Random

108.

Lana and Jeff each randomly surveyed 15 students about their favorite types of movies. What would you expect to see in the samples? Select all that apply.

a)

Different members are found in each sample.

b)

Some members may possibly overlap in each sample.

c)

Each sample gave the same responses.

d)

Both samples could be representative of the population.

e)

Both samples include only Lana and Jeff's friends.

109.

The principal at Marina Middle School wants to determine if the 120 students in the seventh grade prefer to visit Catalina Island or Camp Mosaic for their end-of-year trip. Which of the following is a representative sample of the population? Select all that apply.

a)

20 sixth-grade students, 20 seventh-grade students, and 20 eighth-grade students

b)

10 seventh-grade boys and 10 seventh-grade girls

c)

25 seventh-grade students

d)

15 seventh-grade boys and 5 teachers

e)

25 students from the school

110.

If you choose 5 bingo balls from a basket of 50 balls, what sampling technique are you using?

(a)  

111.

This is the most commonly seen distribution pattern. Example: wolves. This is usually because there are resources found in particular areas and the organisms need more space to survive.

a)

random

b)

clumped

c)

uniform

112.

How do you ensure that the quadrat is placed randomly?

a)

Throw the quadrat into the field.

b)

Place the quadrat near where you are standing.

c)

Divide the area into a grid and choose the coordinates.

d)

Divide the area into a grid and use a random number generator to select coordinates.

113.

Poole wants to know how students at OV rate the school lunch. I surveyed my IB Psych class to rate the food. Is this a biased sample of the school's population?

a)

Yes because it is a convenience sample. The sample is asking a very specific group that may not accurately match the population.

b)

No, the IB Psych class has the smartest students and the best foodies.

c)

Yes, because it is a voluntary survey that only interested students took.

d)

No, Poole should have asked the culinary class since have more experience with food.

114.

A beverage company wants to see if people in the United States like their new logo. Which of the following would be the best selection for a sample.

a)

2,000 middle school students

b)

A selection of logo designers

c)

A selection of shoppers from different states

d)

All of the people in the United States

115.
a bird that can easily outcompete other birds for food and that can produce many eggs has a high
a)
life expectancy
b)
mutation rate
c)
fitness
d)
adaptability
116.

In what year did the RMS Titanic sink?

a)

1926

b)

1945

c)

1912

d)

1918

117.

Q2: what is defined by the following: "how well a test measures what it is purported to measure"?

a)

Accuracy

b)

Precision

c)

Reliability

d)

Validity

118.
Favors the middle of the population.
a)
Disruptive selection
b)
Stabilizing selection
c)
Directional selection
119.

True or False:

You want to see how many students take the bus home from school. You go to the bus stop and ask students how they get home everyday. This is a good, representation of the population.

a)

True

b)

False

120.

Question 4

a)

Purple Ammo

b)

Special Ammo

c)

Medium Ammo

d)

Nitro Ammo

121.
the hind leg bones in a whale are examples of
a)
homologous structures
b)
analogous structures
c)
fossils
d)
vestigals
122.

The only number that has the same number of letters as its meaning

a)

4

b)

2

c)

5

d)

0

123.

Limpets were found in 25 out of 50 quadrats. What is coverage percentage of limpets?

a)

50%

b)

25%

c)

75%

d)

100%

124.
Name the 3rd President of the United States.  He was also our first Secretary of State.
a)
John Adams
b)
Abraham Lincoln
c)
Benjamin Franklin
d)
Thomas Jefferson
125.
How many lambs in the picture?
a)
2
b)
3
c)
4
d)
5
126.

Based on the results of this survey, which elective was least popular and should be canceled?

a)

Spanish

b)

Theater

c)

Art

127.

A researcher selected a sample of 𝑛 = 120 from a population of 850 by

using the Table of Random Numbers

a)

Simple Random

b)

Systematic

c)

Stratified

d)

Cluster

128.

Jeanne pulled a marble out of a bag at random, recorded the color, and placed the marble back into the bag three times. The results are shown below.

• 2 blue • 1 red

She concluded that the bag contained exactly 4 blue marbles and 2 red marbles. To verify her conclusion, she then pulled an additional 15 marbles out of a bag using the same procedure. The results for all are shown below.

• 5 blue • 7 white • 6 red

Which best explains why Jeanne’s conclusion is incorrect?

a)

She drew a blue marble first.

b)

Her sample size was too small.

c)

She drew more red than blue marbles.

d)

Her method for selection should not have been random.

129.

Ryan wants to find the favorite video game of the fifth grade boys at his school. Which group would be best for Ryan to survey?

a)

25 fifth grade boys

b)

25 fifth grade students

c)

every teacher at his school

d)

every boy who will pass to fifth grade next year

130.

Ms. Jimerson asked students how much time they spent studying for their final exams. This dot plot shows the results.

Based on the dot plot, what is the approximate number of students that studied more than 2 hours if there are 450 students in the school?

a)

225

b)

158

c)

135

d)

64

131.

Scientists want to estimate the cheetah population in an area.

They tagged and released 29 cheetahs.

Later, they found 120 cheetahs, 9 of which were tagged.

Based on this information, what is the approximate cheetah population in this area?

a)

129

b)

158

c)

387

d)

1,080

132.

An amusement park employee was surveying people waiting in line to ride a roller coaster. Each person was asked whether waiting in line was worth their time. Which statement best explains why the significance of the survey results might be misinterpreted?

a)

People could be waiting in the wrong line.

b)

People could be waiting in line for a short period of time.

c)

People waiting in line have already shown a willingness to wait.

d)

People already waiting in line could simply be holding a place for friends.

133.

A beverage company prints game pieces on the inside of bottle caps and claims that one in six wins a prize. Catherine bought six bottles and did not win. Which statement is the best explanation for why she did not win?

a)

The company made an incorrect claim.

b)

Catherine bought all the bottles at the same time.

c)

Catherine did not buy them from different locations.

d)

The company made the claim based on a large quantity of bottles.

134.

Truck drivers in Miami were recently asked in a survey which type of car fuel they thought American drivers would be using in ten years. The results of this survey are shown in the table.

Which statement best describes why the results are biased?

a)

The sample size used is too small.

b)

The numbers are in descending order.

c)

The order of the fuel types is not alphabetical.

d)

The sample population is not representative of American drivers.

135.

Bert’s new high school plans to choose school colors by the end of the month. Bert surveyed 100 band students for their color preferences in the chart.

Which statement best describes why Bert’s data is misleading?

a)

The population sample is not identified by age.

b)

It does not give the percentage for each color combination.

c)

It does not identify the grade level of the students surveyed.

d)

The entire school population is not represented in the survey.

136.

A research group wants to know what types of car accessories drivers prefer. The research group will survey 1000 people. Which group would be BEST to use as a sample?

a)

employees at a car repair shop

b)

people who answered the phone

c)

drivers who stopped for gas at a service station

d)

high school students who just got their driver’s licenses

137.

Lee read a report on a survey showing that 80% of the adult population in one southern state, enjoy hot weather. In summarizing the report to her class, Lee stated that a majority of adults in the United States enjoy hot weather. What did Lee overlook in this statement?

a)

that only adults were included in the report

b)

that 80% is not a majority of the group surveyed

c)

that hot weather was not defined as a specific temperature range

d)

that conducting a similar survey in other parts of the country may produce different results

138.

A magazine company conducted a phone survey asking subscribers to identify the brand of outdoor camping equipment they like best. Every subscriber was surveyed, and the results were printed in an article entitled, “Most Popular Equipment Among All Campers.” Why is the title of the article misleading?

a)

The survey only focused on camping equipment.

b)

The magazine only surveyed its own subscribers.

c)

The survey was conducted on the telephone.

d)

The magazine asked for brands rather than types of equipment.

139.

Mr. Carter’s math class wants to know the favorite spectator sport of the students at their high school. Listed are 4 sampling methods. Which sampling method would produce the most accurate results?

• Kenneth stands at the entrance to the football field and surveys each student as they enter the field for a football game.

• Lynn stands at the entrance to the school in the morning and surveys the first 20 students to arrive at school.

• Maleka uses a list of all students at the high school, chooses every tenth name, and then surveys that student.

• Tony surveys all the students in his classes.

a)

Kenneth’s method

b)

Lynn's method

c)

Maleka’s method

d)

Tony’s method

140.

An ice-cream shop asked customers to vote for their favorite flavor of ice cream. This table shows the results.

Based on the table, which statement is true?

a)

About one-half of the customers voted for vanilla.

b)

More than 25% of the customers voted for vanilla.

c)

Less than 20% of the customers voted for chocolate.

d)

About one-third of the customers voted for strawberry.

141.

Students were surveyed about the time they go to bed on school nights. This table shows the results.

Out of 400 students in the school, what is the best prediction for the number of students who go to bed after 10:00 p.m.?

a)

5

b)

17

c)

30

d)

66

142.

A band director randomly surveyed 25 of his students about the number of minutes they practice each night. Of those surveyed, 5 students practice 60 minutes or more each night. There are 100 band students.

What is the best estimate of the number of band students that practice 60 minutes or more each night?

a)

5

b)

12

c)

20

d)

25

143.

A bank has 432 employees. A survey was given to a random sample of employees that asked “What form of transportation do you normally use to get to work?”. This table shows their responses.

Based on this data, what is a reasonable estimate of the number of bank employees that ride the bus to work?

a)

7

b)

8

c)

52

d)

58

144.

Thomas asked students what they planned to do during summer vacation. This table shows the students’ responses.

Which statement is true?

a)

More than 25% of the students planned to visit family or visit a museum.

b)

Less than 40% of the students planned to go to the beach.

c)

More than 10% of the students planned to visit a museum.

d)

Less than 25% of the students planned to stay home and relax.

145.

In a school, 60 students were randomly chosen and were surveyed about their favorite subject. Of the 60 students, 24 students chose math as their favorite subject. Based on the survey results, about how many of the 350 total students at the school would be expected to choose math as their favorite subject?

a)

40

b)

84

c)

140

d)

314

146.

A cafeteria in a mall wants to conduct a survey on a new addition to the menu. Which of these samples would provide the MOST representative survey of its current customers?

a)

survey every 100th person who enters the mall

b)

survey every 10th person leaving the cafeteria

c)

survey every 5th child who enters the cafeteria

d)

survey every 50th woman leaving the mall

147.

A deli that just opened was giving out free mini sandwiches. A sample of 50 likely customers was surveyed about which sandwich they preferred. The people surveyed included 12 people who said they preferred the roast beef sandwich. Based on this information, how many of the first 150 sandwich orders should the deli predict will be for roast beef?

a)

36

b)

8

c)

48

d)

24

148.

A (a)   is a part of a group being surveyed.

Choose from the below words
sample
population
random sample
quartile
149.

A ​ (a)   is the entire group of objects or individuals considered for a survey.

Choose from the below words
population
sample
random sample
quartile
150.
The manager of a book store surveys people who buy mystery novels to see if the store should expand its hours.  What is the population?
a)
People who visit the bookstore.
b)
People who buy mystery novels.
c)
Residents of the town
d)
People who like to read.
151.
A student surveys mathematics teachers to get their opinion on teaching.  What is the sample?
a)
All teachers in the world.
b)
All teachers within the school.
c)
All mathematics  teachers in the school.
d)
All teachers except mathematics teachers.
152.
A new cable TV station wants to study the viewing habits of households.  The station surveys every household that purchased a new TV within the last 2 years in New York.  Is this random sampling?
a)
Yes
b)
No
153.
A U.S. senator from Maine wants to find out the opinion of the voters in his state on issues concerning education.  The office of the senator sends out a survey to a random sample of registered voters in Maine.  Is this random sampling?
a)
Yes
b)
No
154.
A U.S. senator from Maine wants to find out the opinion of the voters in his state on issues concerning education.  The office of the senator passes out surveys on ten street corners in the five major cities in the state of Maine.  Is this random?
a)
Yes
b)
No
155.

A U.S. senator from Pennsylvania wants to find out the opinion of the voters in his state on issues concerning education. The office of the senator passes out surveys on ten street corners in the five major cities in the state of Pennsylvania. Is this random?

a)

yes

b)

no

156.

Leslie surveyed the 9 youngest students in the elementary school. Is this sample of the students in the school likely to be representative of all the students in the school?

a)

yes

b)

no

157.
Marcos wants to find out how many students at his school like to go to the movies. Which survey method is likely to produce a representative survey?
a)
Ask the boys in the boys locker room.
b)
Ask the 25 students in his homeroom class.
c)
Ask students coming out of a movie theater.
d)
Ask half of the 34 students on the soccer team.
158.
_________ is a sample in which each individual or object in the entire population has na equal chance of being selected.
a)
Sample
b)
Population
c)
Random Sample
d)
Quartile
159.
_______ is a part of a group being surveyed.
a)
Sample
b)
Population
c)
Random Sample
d)
Quartile
160.
Why do we randomly select our samples?
a)
to control every aspect
b)
reduce bias
c)
so we don't get the same answers from everyone
d)
because it is easier to do
161.
In order to use samples to estimate something from the population, the sample should be _________________ the population.
a)
exactly the same as
b)
nothing like
c)
representative of
d)
larger than
162.
Kim surveys 100 moviegoers that entered the movie theater in the first hour.  What type of sampling method is this?
a)
Random
b)
Convenience
c)
Biased
163.
Darrien surveys 60 of the actors theater class. He concludes that 8 out of 15 actors have previous acting experience. What is the sample size?
a)
60
b)
8
c)
15
d)
53
164.
Every member of the larger group has an equal chance of being chosen.
a)
secondary sample
b)
systematic sample
c)
stratified sample
d)
random sample
165.
You want to know what is the most favorite sport of 7th graders at BMS.  You ask 7th graders who want to participate to go to the office 5th period to complete a survey.  This is...
a)
Biased, because it is a convenience sample
b)
Unbiased
c)
Biased because it is an interval sample
d)
Biased because it is a volunteer sample
166.
Identify the Sample:
A restaurant wants to know if their customers buy dessert when they eat out. As people leave the restaurant one evening, 20 people are surveyed at random. Eight people say they usually order dessert when they eat out. The restaurant concluded that most customers do not order dessert.
a)
20 customers
b)
All customers
c)
8 customers
d)
Dessert
167.
Ana wants to know the average student’s opinion of the tardy policy at her school. Which group of students should she survey in order to achieve the most accurate results?
a)
thirty students who are often tardy
b)
thirty students who are rarely tardy
c)
thirty of her friends
d)
thirty randomly selected students from her school
168.
True or False: all samples lead to a good prediction about an entire population.
a)
True
b)
False
169.
Several students were surveyed about their favorite drinks. 11 orange soda, 17 pepsi, 10 coke, and 12 said grape. What percent of students like coke as their favorite?
a)
2%
b)
10%
c)
20%
d)
50%
170.
Josie threw a handful of identically shaped buttons into the air, then collected the 27 buttons that landed in a target on the floor.  Is this a random sample of the buttons?
a)
yes
b)
no
171.
Leslie surveyed the 9 youngest students in the elementary school.  Is this sample of the students in the school likely to be representative?
a)
yes
b)
no
172.
According to a random telephone survey of 200 adults, 75% of all working adults in the U.S. are satisfied with their current job. What is the population in this survey?
a)
200 adults
b)
adults in the U.S.
c)
75% of adults
173.
Zoie completes a report by asking 70 students across campus. She found that 48% of CTMS students do not wash their hands after using the bathroom. What is the sample size?
a)
48
b)
100
c)
70
d)
CTMS students
174.
A recent survey of 800 seventh graders from across the state shows 4 out of 10 like to play paper football. How many students said they like to play paper football?
a)
40 students
b)
200 students 
c)
320 students
d)
8,000 students

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