Question

Find the standard deviation, σ, for the binomial distribution which has the stated values of n and p. round your answer to the nearest hundredth. n = 1617; p = 0.57

Answer 1

The standard deviation is 19.91.

To find the standard deviation is a binomial distribution, you have to take the square root of the total number multiplied by the percent and its compliment.

Our expression will be:

$\sqrt{x} 1617*.57*.43$

This will evaluate to about 19.91.