If the variance on a test is small, we know that
A) people had similar scores on the test
B) people had scores close to the mean score
C) the standard deviation will be small
D) all of the above

Question

Quizplus · Accepted Answer

All of the statements are correct. A small variance indicates that the scores are clustered closely together, meaning people had similar scores (A), which are close to the mean (B), and consequently, the standard deviation, which is the square root of variance, will also be small (C).

If the Variance on a Test Is Small, We Know