A normal population has 99.73 percent of the population measurements within _____ standard deviations of the mean.
A)one
B)two
C)three
D)four
E)five

Question

Quizplus · Accepted Answer

This is a rule known as the 68-95-99.7 rule, which states that in a normal distribution, approximately 68% of the data falls within one standard deviation of the mean, approximately 95% falls within two standard deviations, and approximately 99.73% falls within three standard deviations. So the answer is option C) three.

A Normal Population Has 99