12th Grade Population & Sample Quizzes, Questions & Answers

12th Grade

Top Trending Population & Sample Quizzes

Using Sample Data to Estimate Population Parameters Quiz

In this quiz, you’ll practice using sample data to estimate population parameters, including population means and proportions. You'll also work with margin of error and confidence intervals to assess the precision of...

Questions: 22 | Attempts: 22 | Last updated: Jan 23, 2026

Sample Question 1
A random sample of 40 students shows that 14 prefer studying in the morning. What is the best estimate of the proportion of all students who prefer morning study?

0.35

0.25

0.30

0.45

Sample Question 2
A poll of 500 residents finds that 315 support a new park. What is the estimated population proportion in support?

0.53

0.63

0.68

0.73

Sample Question 3
A random sample of 60 light bulbs has a mean lifetime of 1,180 hours with a margin of error of ±40 hours (95% confidence). Which is the best interpretation?

The population mean is exactly 1,180 hours.

The population mean is likely between 1,140 and 1,220 hours.

The sample mean will always be within 40 hours of the population mean.

95% of bulbs last between 1,140 and 1,220 hours.

Recent Population & Sample Quizzes

Interpreting Sampling Variability and Margin of Error Quiz

This quiz focuses on sampling variability and how it affects estimates. You'll learn how to interpret margin of error in the context of sample data and make informed decisions about sample sizes. By using simulation models,...

Questions: 22 | Attempts: 11 | Last updated: Jan 27, 2026

Sample Question
Which of the following is the best point estimate of the population proportion who prefer the library based on the simulations?

0.62

0.50

0.035

0.58