Understanding Populations and Samples Quiz

  • 11th Grade
Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Thames
T
Thames
Community Contributor
Quizzes Created: 7682 | Total Attempts: 9,559,744
| Attempts: 15 | Questions: 20 | Updated: Dec 11, 2025
Please wait...
Question 1 / 21
Score 0/100
1) A parameter is to a population as a statistic is to a:

Explanation

A statistic is from a sample.

Submit
Please wait...
About This Quiz
Understanding Populations And Samples Quiz - Quiz

This quiz focuses on the basic concepts of populations and samples, and the differences between them. You'll explore how researchers select samples from populations and why sampling is essential for making reliable inferences about larger groups. You will also learn about population parameters and sample statistics.

2)
You may optionally provide this to label your report, leaderboard, or certificate.
2) A school principal wants to know the average number of books students read per year in the entire school. Which is the population?

Explanation

The population is the whole group you care about → here, all students in the school.

Submit
3) A survey asks 200 randomly selected city residents about commute time to estimate the city's average commute time. What is the sample?

Explanation

The sample is the smaller group actually surveyed → the 200 residents.

Submit
4) Which scenario best describes a population parameter?

Explanation

A parameter is a true value for the entire population.

Submit
5) Why do researchers use samples instead of surveying entire populations?

Explanation

Sampling saves time and money.

Submit
6) Which is the best reason to use a random sample?

Explanation

Random sampling helps make the sample representative.

Submit
7) Which is an example of a biased sample?

Explanation

People at a gym are likely to exercise more.

Submit
8) Which statement is true about populations and samples?

Explanation

A sample is a smaller part.

Submit
9) Which plan is most likely to introduce voluntary response bias?

Explanation

Plan C uses volunteers from social media.

Submit
10) Which statement is most accurate about Sample Z?

Explanation

Sample Z includes only two schools.

Submit
11) Which statement best summarizes the purpose of sampling?

Explanation

We sample to learn about the population.

Submit
12) A team wants to estimate the average height of oak trees in a forest. Which is the best method?

Explanation

Randomly measuring trees across the forest gives a fair picture.

Submit
13) A researcher studies the average screen time of teenagers... goal?

Explanation

We use the sample to estimate the population.

Submit
14) A school district wants to know the percentage of students who prefer online homework. Which is a parameter?

Explanation

A parameter is the true value.

Submit
15) Which plan describes the population?

Explanation

Plan A uses all 9,600 students.

Submit
16) Which plan is most likely to produce a representative sample?

Explanation

Plan B randomly surveys students.

Submit
17) Which plan is most likely to overrepresent students from a single environment?

Explanation

Plan D surveys only one school.

Submit
18) Which sample is most likely to be biased high for extracurricular hours?

Explanation

Sample Y is from a competitive sports event.

Submit
19) Which sample is most likely to be representative?

Explanation

Sample X uses a random household mailing list.

Submit
20) A university wants the average GPA... sample statistic?

Explanation

The sample statistic is the mean of sampled students.

Submit
×
Saved
Thank you for your feedback!
View My Results
Cancel
  • All
    All (20)
  • Unanswered
    Unanswered ()
  • Answered
    Answered ()
A parameter is to a population as a statistic is to a:
A school principal wants to know the average number of books students...
A survey asks 200 randomly selected city residents about commute time...
Which scenario best describes a population parameter?
Why do researchers use samples instead of surveying entire...
Which is the best reason to use a random sample?
Which is an example of a biased sample?
Which statement is true about populations and samples?
Which plan is most likely to introduce voluntary response bias?
Which statement is most accurate about Sample Z?
Which statement best summarizes the purpose of sampling?
A team wants to estimate the average height of oak trees in a forest....
A researcher studies the average screen time of teenagers... goal?
A school district wants to know the percentage of students who prefer...
Which plan describes the population?
Which plan is most likely to produce a representative sample?
Which plan is most likely to overrepresent students from a single...
Which sample is most likely to be biased high for extracurricular...
Which sample is most likely to be representative?
A university wants the average GPA... sample statistic?
Alert!