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The p.m.f. of a r.v. X is P(x) =1/15,...

The p.m.f. of a r.v. X is
`P(x) =1/15`, for x =1,2, .......... , 14,15
= 0 otherwise.
Then,` E(X)` is equal to

A

(a) `2`

B

(b) `4`

C

(c) `6`

D

(d) `8`

Text Solution

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The correct Answer is:
D
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