Question: Let X be a random variable that follows Poisson distribution with the rate being 2. Let Y - X 2. a. Write out the

Let X be a random variable that follows Poisson distribution with

Let X be a random variable that follows Poisson distribution with the rate \\ being 2. Let Y - X 2. a. Write out the probability mass function of Y. b. Prob(Y> 9)= ? (No need to calculate out the final number.)

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