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If X is a random Poisson variate such th...

If X is a random Poisson variate such that `alpha =P(X=1)=P(X=2)` then P(X=4)=

A

`2alpha `

B

`(alpha)/(3)`

C

`alpha ^(-2)`

D

`alphae^(2)`

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The correct Answer is:
B
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