The formula for the standard deviation of a binomial distribution is √(np(1-p)). That is the square root of n times p times 1-p. Note 1-p is the same thing as q.
√(38*.4*.6) = 3.02
Britney L.
asked • 07/15/19Find the standard deviation for the binomial distribution with n=38 and p=.4. Round to nearest hundredth.
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