SOLUTION: Find the mean, variance, and standard deviation of n=90, p=0.2

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Question 236189: Find the mean, variance, and standard deviation of n=90, p=0.2
Answer by stanbon(26259) About Me  (Show Source):
You can put this solution on YOUR website!
Find the mean, variance, and standard deviation of n=90, p=0.2
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mean = np = 90*0.2 = 18
variance = npq = 18*0.8 = 14.4
std = sqrt(npq) = 3.795
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Cheers,
Stan H.