Mathematics
Mathematics, 30.03.2021 14:00, milkshakegrande101

Suppose that the probabilities are 0.4, 0.3, 0.2, and 0.1, respectively, that 0, 1, 2, or 3 power failures will strike a certain subdivision in any given year. with mean E(X) = 1 and variance o^2 = 1. find the mean and variance of the random variable Z = 4X + 7.​

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Suppose that the probabilities are 0.4, 0.3, 0.2, and 0.1, respectively, that 0, 1, 2, or 3 power fa...

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