The normal distribution is completely described by its mean and standard deviation where 50 percent of the distribution's probability is less than the mean and 50 percent greater than the mean.

Question

Quizplus · Accepted Answer

This statement is true. The normal distribution is symmetrical and approximately 68.27% of the observations fall within one standard deviation of the mean, 95.45% of the observations fall within two standard deviations of the mean, and 99.73% of the observations fall within three standard deviations of the mean.

The Normal Distribution Is Completely Described by Its Mean and Standard