The variance of a binomial distribution is given by the formula , where n is the number of trials, and p is the probability of success in any trial.

Question

The variance of a binomial distribution is given by the formula  , where n is the number of trials, and p is the probability of success in any trial.

Quizplus · Accepted Answer

This is the correct formula for the variance of a binomial distribution. The square of the standard deviation, which is the square root of the variance, is equal to n times p times q, where q is the probability of failure in any trial (q = 1-p).

The Variance of a Binomial Distribution Is Given by the Formula