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A random variable X takes values 0, 1, 2...

A random variable X takes values `0, 1, 2,......` with probability proportional to (x with proba bility proportional to `(x + 1)(1/5)^x`, , then `5 * [P(x leq 1)^(1/2)]` equals

A

`(1)/(4)`

B

`2`

C

`(1)/(2)`

D

`4`

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The correct Answer is:
(c)
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