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Suppose that a random variable X has the following probability mass function ( pmf ) = X 4 - 2 - 3 6 P (

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Suppose that a random variable X has the following probability mass function ( pmf ) = X 4 - 2 - 3 6 P ( x ) 0 . 3 - P 2 p2 0. 1 2p 10 . 4 where p2 2 0. 3 a) Is it possible to determine up" uniquely? b) find the mean of X. c ) find p ( 1 X - 0 .5 / 72

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