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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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Knowledge Check

  • If the function f(x) =(x^(2))/(3), - 1lt x lt 2 = 0 , otherwise is a p.d.f of X, then P(X lt 0) is

    A
    `(1)/(9)`
    B
    `(2)/(9)`
    C
    `(3)/(9)`
    D
    `(4)/(9)`

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