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Annual profit ( P ) is the product of total annual sales ( S ) and profit per unit sold ( X ); thatis, P
Annual profit (P) is the product of total annual sales (S) and profit per unit sold (X); thatis, P=XS. It is desired to know the probability distribution of the random variable P when X and S have the following assumed probability mass functions (X and S areindependent). What are themean, variance, and standard deviation of the probability distribution for annualprofit, P?
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