zeinasalem zeinasalem

16-03-2017
Mathematics

Answered

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

Verified Answer :

LammettHash LammettHash

17-03-2017

Mean: \(np=100\times0.20=20\)

Standard deviation: \(\sqrt{np(1-p)}=\sqrt{100\times0.20\times0.80}=4\)

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