Question: Please provide a step by step for these calculations X is a random variable where E [X] = 80 and Var(X)=20. Calculate the followings. (a)

Please provide a step by step for these calculations

Please provide a step by step for these calculations X is a

X is a random variable where E [X] = 80 and Var(X)=20. Calculate the followings. (a) E [X2] (b) E[4X + 5] (c) Var(X) (d) standart deviation of 2X

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