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Bias,unbias,Population Sample

Total questions: 36

Worksheet time: 42mins

Name
Class
Date
1.
_______ is a part of a group being surveyed.
a)
Sample
b)
Population
c)
Random Sample
d)
Quartile
2.
_______ is the entire group of objects or individuals considered for a survey.
a)
Sample
b)
Population
c)
Random Sample
d)
Quartile
3.
_______ is a part of a group being surveyed.
a)
Sample
b)
Population
c)
Random Sample
d)
Quartile
4.
_______ is the entire group of objects or individuals considered for a survey.
a)
Sample
b)
Population
c)
Random Sample
d)
Quartile
5.
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.
6.
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.
7.
A computer manufacturer surveys its customers who purchased laptop computers to ask what software the company should include with its computer.  Identify the population.
a)
Customers who purchased laptop computers.
b)
Customers of the store.
c)
Customers who are interested in software.
d)
Computer manufacturers
8.
A music store gives comment cards to all members of its Jazz Club to find out about satisfaction with the club's features.  Identify the sample.
a)
People who play instruments.
b)
All music store customers except Jazz Club members.
c)
All music store customers
d)
Jazz Club members
9.
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
10.
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
11.
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
12.
True or False: all samples lead to a good prediction about an entire population.
a)
True
b)
False
13.
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
14.

A beverage company wanted to see if people in the United States liked their new logo. Which choice best represents a population?

a)

A selection of logo artists.

b)

Every person in the United States.

c)

A selection of shoppers from different states.

d)

3,800 children age 5 - 15

15.

A toy store owner tracking how much kids spend each month on toys. Which choice best represents a population?

a)

All of the kids who buy toys.

b)

227 wealthy kids.

c)

228 boys age 7 - 15

d)

235 kids from age 10 to 15.

16.

A local candle store surveys 50 customers to find out their opinion on a new scented candle. The customers were chosen randomly from the store mailing list.

Is this sampling method random?

a)

Yes

b)

No

17.
What would be the population in this example?
Surveyors in a mall choose shoppers to ask about products they prefer.
a)
the surveyors
b)
all shoppers in the mall
c)
the shoppers who were asked their preferences
18.

To get valid results, a sample must be...

a)

biased

b)

unbiased

19.

Which would be a good Unbiased group?

a)

every third student entering the building

b)

every member of the varsity football team

c)

every member in Ms. Zimmer’s drama classes

d)

every student having a second-period French class

20.

You are doing a survey to find out what kids really think about school lunch and you stand outside a lunchroom and ask every 5th person from every grade.

a)

Biased (Unfair)

b)

Unbiased (Fair)

21.
Identify the Sample:
A restaurant wants to know if 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
22.
A sample should be
a)
representative of  only middle school students only
b)
a very large group
c)
representative of the population
d)
representative of people who volunteer
23.

Determine if the following study is biased.

A public library asked every 10th person who entered to name the type of book they were getting.

a)

A. Biased

b)

B. Unbiased

24.
What would be the population in this example?
Surveyors in a mall choose shoppers to ask about products they prefer.
a)
the surveyors
b)
all shoppers in the mall
c)
the shoppers who were asked their preferences
25.
_______ is the entire group of objects or individuals considered for a survey.
a)
Sample
b)
Population
c)
Random Sample
d)
Quartile
26.
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.
27.
A gaming website wanted to find out which console its visitors owned.
Which choice best represents the population?
a)
Visitors to the 3DS section.
b)
All of the website visitors.
c)
Visitors to the PS4 section.
d)
Visitors who are on the website for more than 5 minutes.
28.

The social studies department teachers..

a)

Population

b)

Sample

29.

Students and staff who participate in after school activities..

a)

Population

b)

Sample

30.

The school secretaries..

a)

Population

b)

Sample

31.

The girls on the volleyball team

a)

Population

b)

Sample

32.
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.
33.
True or False: all samples lead to a good prediction about an entire population.
a)
True
b)
False
34.
A school survey asked 50 girls to identify their favorite items on the school cafeteria menu. This sample is ________________.
a)
Biased
b)
Unbiased
c)
Representative
d)
Numerical
35.
1. A sample in which every person, object, or event has an equal chance of being selected.
a)
A. Random sample.
b)
B. Biased sample.
36.
2. When a sample does not accurately represent the population it is a:
a)
A. Unbiased sample
b)
B. Biased sample

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