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IF X to B ( n = 10 ,p ) and E (X )...

IF ` X to B ( n = 10 ,p ) and E (X ) =5`
then P and V(x) are .

A

`5/2,7/2`

B

`1/2,(5 )/(2)`

C

`(3)/(2),(9)/(2)`

D

none of these

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The correct Answer is:
B
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