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The mean and the variance of a binomial ...

The mean and the variance of a binomial distribution are 4 and 2 respectively.then, the probabitly of 2 , successes is

A

`(1)/(2)`

B

`(219)/(256)`

C

`(37)/(256)`

D

`(7)/(64)`

Text Solution

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The correct Answer is:
A
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