A table of random numbers is used to select 30 students from a statistics class to rate a statistics video. The ratings that these students give are used to estimate the ratings that would be given if the entire class were asked to rate the video. This type of sample is
A) a biased sample.
B) a convenience sample.
C) a census.
D) voluntary response sample.
E) a sample that avoids bias.

Question

Quizplus · Accepted Answer

This sample is a random sample, which avoids bias and ensures that all members of the statistics class have an equal chance of being selected to rate the video. Additionally, a relatively large sample size of 30 students increases the accuracy of the estimated ratings that would be given if the entire class were asked to rate the video.

A Table of Random Numbers Is Used to Select 30