Question: A generalization of the binomial model occurs when there is a sequence of n independent trials with three outcomes, where p1 = P (outcome 1)

A generalization of the binomial model occurs when there is a sequence of n independent trials with three outcomes, where p1 = P (outcome 1) and p2 = P (outcome 2). Let X and Y denote the number of trials (out of n) resulting in outcome 1 and outcome 2, respectively.
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n! px.Y (x , y) PiP =

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