What are the mean and standard deviation of a binomial

Jason Yuhas 2022-01-19 Answered
What are the mean and standard deviation of a binomial probability distribution with n = 88 and p=2432?
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Expert Answer

Serita Dewitt
Answered 2022-01-19 Author has 41 answers
Explanation:
for a Binomial distribution
XB(n,p)
in this case
XB(88,2432)
or XB(88,34)
mean E(X)=np
in this case
E(X)=88×34=66
standard deviation =variance
sd=np(1p)
sd=66×14
sd=22
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yotaniwc
Answered 2022-01-20 Author has 34 answers
2432=34
μ=np
=8834
=66
σ2=np(1p)
=8834(134)
=16.5
σ=σ2=16.5=4.06
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