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Home  >>  EAMCET  >>  Mathematics
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If X is a Poisson variate such that $P(X-1)-P(X=2),$ then $P(X=4)=$

\[\begin {array} {1 1} (1)\;\frac{1}{2e^3} & \quad (2)\;\frac{1}{3e^2} \\ (3)\;\frac{2}{3e^2} & \quad (4)\;\frac{1}{e^2} \end {array}\]

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1 Answer

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$ (3)\;\frac{2}{3e^2}$
answered Nov 7, 2013 by pady_1
 
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