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The p.m.f. of a.r.v. X is as follows: ...

The p.m.f. of a.r.v. X is as follows:
`P( X=0) = 3k^ (3), P(X=1) = 4k-10k^ (2)`,
`P(X=2)=5k-1, P(X=x)=0` for any other value of x,
then value of k is

A

(a) `1/3`

B

(b) `2/3`

C

(c) `1`

D

(d) `2`

Text Solution

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The correct Answer is:
A
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