Populations and Sampling

Question 1

Which is true of a population in a statistical survey? Check all that apply.

Revolt · Accepted Answer

B: A population can be a group of objects or events.; D: A population must be the target of the survey question.

Question 2

Which statement is true of an appropriate sample of a population?

Revolt · Accepted Answer

A: A sample must be a group of people who are the target of the survey question.

Question 3

Eric wants to find out the most popular after-school activity among high school seniors at his school. What is the population in Eric’s survey?

Revolt · Accepted Answer

C: all high school seniors at Eric’s school

Question 4

Determine the best survey question for a population of all cell phones produced by a company.

Revolt · Accepted Answer

B: What percentage of cell phones made by the company are defective?

Question 5

In what situations is it helpful to use a sample of a population? Mark all that apply.

Revolt · Accepted Answer

A: if the population is very large; C: if it would take a lot of time to survey the entire population; D: if it would require a lot of money to survey the entire population

Question 6

A farmer wants to find out the average number of apples produced by the apple trees in his orchard. Which could be a sample of the population?

Revolt · Accepted Answer

C: some of the apple trees in the farmer’s orchard

Question 7

Which surveys would a sample be appropriate for? Mark all that apply.

Revolt · Accepted Answer

A: Helen wants to know the favorite sport of adults in her town.; D: Kevin wants to know the most common way students get to school.

Question 8

Kanesha wants to find out if people in her community would support turning an unused park into a dog park. Which populations would be appropriate to sample for the survey?

Revolt · Accepted Answer

A: people who live near the unused park

Question 9

Why might this group of toys not be a valid sample? Check all that apply.

Revolt · Accepted Answer

B: The sample should represent all the toys produced throughout the day, not just the first 100.; D: The sample should represent an entire week or month, not just a single day.

Populations and Sampling Answers

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