RD Sharma - Mathematics (Volume 2)

Book: RD Sharma - Mathematics (Volume 2)

Chapter: 33. Binomial Distribution

Subject: Maths - Class 12th

Q. No. 1 of Very Short Answer

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1

In a binomial distribution, if n = 20, q = 0.75, then write its mean.

Given:


n=20


q=0.75


p=?


q=(1-p)


=0.75


p=1-0.75


=0.25


Mean = np


= 20(0.75)


= 15


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