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If the function P (X=x) =kx,……x=1,2,3,4,...

If the function P (X=x) =kx,……x=1,2,3,4,5=0 ….otherwise
is a probability mass function (p.m.f.) ,then : k=….

A

`1/(14)`

B

`1/(15)`

C

`1/(16)`

D

none of these

Text Solution

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The correct Answer is:
B
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