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In a Binomial Distribution, If N = 20 and Q = 0.75, Then Write Its Mean. - CBSE (Science) Class 12 - Mathematics

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Question

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

 

Solution

n= 20 , q =0.75

\[\Rightarrow p = 1 - q = 0 . 25\]
\[\text{ Mean = np } = 20(0 . 25) = 5\]
\[\text{ Thus, mean } = 5\] 

  Is there an error in this question or solution?

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Solution In a Binomial Distribution, If N = 20 and Q = 0.75, Then Write Its Mean. Concept: Bernoulli Trials and Binomial Distribution.
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