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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?

User Matt Wills
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1 Answer

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Mean:
np=100*0.20=20

Standard deviation:
√(np(1-p))=√(100*0.20*0.80)=4
User Yassine Badache
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