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Suppose that X is a random variable with mean #x = 20 Find the variance o and the standard deviation oz of the and standard

Suppose that X is a random variable with mean #x = 20 Find the variance o and the standard deviation oz of the and standard deviation ox = 4. Also, suppose that Y is a random variable Z = 15X - 20. random variable with mean My = 40 and standard @ Macmillan Learning (Use decimal notation. Give your answers to one decimal deviation oy = 7. Assume that X and Y are independent. place if necessary.) 240 62 = Incorrect 15.5 OZ = Incorrect

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