Question

Bob got an Arts Commission grant to paint the expression for the mean and standard deviation for a binomial distribution on the side of the Gauss Memorial Warehouse. Which expression should he paint

Answer 1

mu = np, sigma = square root of np (1 - p)

Explanation:

The mean of a binomial distribution is np, or the expected value. The standard deviation is sqrt np(1-p), or the square root of the expected value of successes times the expected value of failures.