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The mean and variance of a binomial dist...

The mean and variance of a binomial distribution `(p+q)^n` are 20 and 16 respectively. Then, the pair (n,p) is

A

`(100,1/5)`

B

`(100,2/5)`

C

`(50,1/5)`

D

`(50,2/5)`

Text Solution

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The correct Answer is:
A
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