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4.A fair die is tossed. X is a random variable that equals 1 if the rst toss is 5 or 6, and equals 0 if

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4.A fair die is tossed. X is a random variable that equals 1 if the rst toss is 5 or 6, and equals 0 if the first toss is 1,2,3 or 4 (please provide your answer in fraction). 3) Find E(X) b) Find Var (X ) 0) Let g(X) = 2X-5. Find Var (g(X)) (9 Marks) 5A random variable X has a cumulative distribution function 0, x

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