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Let X have the CDF F(x) = 1 -x-', x> 1. (a) For what values of a is this a real distribution? (b) Find EX

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Let X have the CDF F(x) = 1 -x-"', x> 1. (a) For what values of a is this a real distribution? (b) Find EX for those values of a where it exists. (c) Find Var(X ) for those values of a where it exists

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