With a normal distribution,we know that approximately
A)95% of all observations will fall within one standard deviation of the mean.
B)99% of all observations will fall within one standard deviation of the mean.
C)95% of all observations will fall within two standard deviations of the mean.
D)99% of all observations will fall within two standard deviations of the mean.
E)95% of all observations will fall within three standard deviations of the mean.

Question

Quizplus · Accepted Answer

Approximately 95% of observations fall within two standard deviations of the mean in a normal distribution.

With a Normal Distribution,we Know That Approximately