Round all of your final answers to four decimal places if necessary. The probability distribution of random variable X is given below:  X 2 4 P(x) 0.2 0.8 A second random variable is defined as follows: Y = 2X + 1. A third random variable is defined as follows: Z = X2 – 1. a) What is μX? b) What is (standard deviation)y2 c) What is (standard deviation)z2

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A:

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Q: What is the expected value of X? E(X) = || What is the expected value of Y? E(Y) =

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A: