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The random variable X and Y are independent, and their distributions are normal, with E(X) = 1000, E(Y ) = 900, StDev(X) = 300, and
The random variable X and Y are independent, and their distributions are normal, with E(X) = 1000, E(Y ) = 900, StDev(X) = 300, and StDev(Y ) = 400.
A. Compute the standard deviation of [X-Y]
B. Compute(<)
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