The mean of a discrete probability distribution is equal to the square root of the variance.

Question

Quizplus · Accepted Answer

The mean of a discrete probability distribution is not necessarily equal to the square root of the variance. The square root of the variance is known as the standard deviation, which is a measure of the spread of the distribution. While there is a relationship between the mean and standard deviation, they are not the same thing.

The Mean of a Discrete Probability Distribution Is Equal to the Square