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(d) Suppose X is a random variable with expectation 0 and variance 1. What are the expectation and variance of Y = aX + b

(d) Suppose X is a random variable with expectation 0 and variance 1. What are the expectation and variance of Y = aX + b (here, a and b are some fixed real numbers, and your answer will be in terms of (a, b))

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