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The mean of a binomial distrution 5 and ...

The mean of a binomial distrution 5 and SD is 2, Then the value of n and p are :

A

`( 4/5, 25)`

B

`(25 , 4/5 )`

C

`(1/5 , 25)`

D

`(25 , 1/5)`

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