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Mathematics, 07.10.2019 16:30 he0gaubong
Suppose that x is a random variable with mean 30 and standard deviation 4. also suppose that y is a random variable with mean 50 and standard deviation of 8. assume that the correlation between x and y is zero. find the variance and the standard deviation of the random variable z for each of the following cases. show work.
(a) z = 35 -10x
(b)z = 12x - 5
(c) z = x +y
(d) z = x -y
(e) z = -2x + 2y
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Suppose that x is a random variable with mean 30 and standard deviation 4. also suppose that y is a...
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