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A binomial probability has p=.20 and n=100, what are the mean and standard deviation?

A binomial probability has p=.20 and n=100, what are the mean and standard deviation?
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A binomial probability has p=.20 and n=100, what are the mean and standard deviation?

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User Matt Wills
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1 Answer

7 votes
Mean:
np=100*0.20=20

Standard deviation:
√(np(1-p))=√(100*0.20*0.80)=4
answered
User Yassine Badache
by
8.5k points
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