Kathy Williams
2022-01-19
Answered

What are the mean and standard deviation of a binomial probability distribution with n=11 and $p=\frac{19}{23}$ ?

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zurilomk4

Answered 2022-01-19
Author has **35** answers

Explanation:

Given -

n=11

$p=\frac{19}{23}$

Mean = np$=11\times \frac{19}{23}=9\frac{2}{23}$

$q=1-p=1-\frac{19}{23}=\frac{4}{23}$

$SD=\sqrt{npq}=\sqrt{11\times \frac{19}{23}\times \frac{4}{23}}=\sqrt{1.58}=1.26$

Given -

n=11

Mean = np

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