Quiz about Samples and Populations Quiz

Question 1

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?

Accepted Answer

People who visit the bookstore.

Answer

People who buy mystery novels.

Answer

Residents of the town

Answer

People who like to read.

Question 2

A student surveys mathematics teachers to get their opinion on teaching.  What is the sample?

Accepted Answer

All mathematics teachers in the school.

Answer

All teachers in the world.

Answer

All teachers within the school.

Answer

All teachers except mathematics teachers.

Question 3

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 biased?

Accepted Answer

The sample didn't include students.

Answer

The sample is too small.

Answer

The sample can only be accurate if each teacher is included in the sample

Answer

English teachers don't drink juice!

Question 4

The part of the population being studied

Accepted Answer

sample

Answer

population

Answer

random

Question 5

What would be the population in this example?
Surveyors in a mall choose shoppers to ask about products they prefer.

Accepted Answer

all shoppers in the mall

Answer

the surveyors

Answer

the shoppers who were asked their preferences

Answer

the workers at Macy's

Question 6

The entire group studied.

Accepted Answer

population

Answer

sample

Question 7

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.

Accepted Answer

Jazz Club members

Answer

People who play instruments.

Answer

All music store customers except Jazz Club members.

Answer

All music store customers

Question 8

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?

Accepted Answer

No

Answer

Yes

Question 9

The Candlelit-Dinner Candle Store surveys its Monday customers to find out their opinion on a new scented candle.  Is this biased or unbiased?

Accepted Answer

Biased

Answer

Unbiased

Question 10

According to a random telephone survey, 85% of all working adults in the U.S. are satisfied with their current job. If I asked 500 adults, how many do you predict would be satisfied with their current job?

Accepted Answer

425 adults

Answer

85 adults

Answer

340 adults

Answer

500 adults

Question 11

Triangle PQR is similar to triangle XYZ.
What is the length of line segment XZ?

Accepted Answer

13.5 in.

Answer

11 in.

Answer

9 in.

Answer

20.25 in.

Question 12

To find the height of a very tall pine tree, you place a mirror on the ground and stand where you can see the top of the pine tree.  How tall is the tree?

Accepted Answer

72 feet

Answer

144 feet

Answer

36 feet

Answer

8 feet

Question 13

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?

Accepted Answer

320 students

Answer

40 students

Answer

200 students

Answer

8,000 students

Question 14

The results of a random survey showed that 42 out of 84 people plan to vote for Coach Vasquez for teacher of the month. Which is the best prediction of the total number of votes he will receive if 2,000 people vote?

Accepted Answer

1000

Answer

825

Answer

750

Answer

1200

Question 15

Shannon made the last 12 out of 20 shots for the varsity basketball team. How many shots would you expect him to make in his next 160 shot attempts?

Accepted Answer

96

Answer

120

Answer

24

Answer

80

Question 16

In a sample of voters in Harrisburg, 18 out of 25 favored creating a new shopping center. If 50,000 people vote in the next Harrisburg election, how many are likely to vote in favor of the new shopping center based on this sample?

Accepted Answer

36,000

Answer

40,000

Answer

14,000

Answer

28,000

Question 17

Interview every 10th student who enters the school in the morning.

Accepted Answer

systematic

Answer

simple random

Answer

voluntary response

Answer

convenience

Question 18

Assign each car in a dealership a number and then use a random-number table to select the cars to be inspected.

Accepted Answer

simple random sample

Answer

systematic

Answer

convenience

Answer

Self - selected (volunteer)

Question 19

Marianne wanted to know students' opinion on the new schedule at school. She survey's the first 30 students who come into her class.

Accepted Answer

Convenience Sampling

Answer

Systematic Random Sampling

Answer

Simple Random Sampling

Answer

Volunteer response

Samples and Populations Quiz

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