What are the mean and standard deviation of a binomial

Danelle Albright

Danelle Albright

Answered question

2022-01-18

What are the mean and standard deviation of a binomial probability distribution with n=8 and p=1219?

Answer & Explanation

lalilulelo2k3eq

lalilulelo2k3eq

Beginner2022-01-18Added 38 answers

Explanation:
For a binomial distribution
Mean
μ=np
In this case:
μ=812195.05
Standard Deviation
σ=np(1p)
In this case
σ=812197191.36
Thomas Nickerson

Thomas Nickerson

Beginner2022-01-19Added 32 answers

Solution:
To find the mean, use the formula
μ=np
μ=81219
Multiplying the expression we have
μ=5.04
To find the standard deviation, use the formula
σ=np(1p)
σ=81219(11219)
σ=1.8
σ=1.36

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