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Let X ~ B (n, p ), if E (X) = 5, Var (X)...

Let `X ~ B` (n, p ), if E (X) = 5, Var (X) = 2.5, then `P(X<1)` is

A

`(1/2)^11`

B

`(1/2)^10`

C

`(1/2)^6`

D

`(1/2)^9`

Text Solution

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The correct Answer is:
B
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