A Random Variable X Is Normally Distributed
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A random variable X is normally distributed with a mean of 100 and a variance of 100, and a random variable Y is normally distributed with a mean of 180 and a variance of 324. The random variables have a correlation coefficient equal to −0.4. Find the mean and variance of the random variable below.W=2X−4Y
μW=
(Type an integer or a decimal.)
σ2W=
(Type an integer or a decimal.)
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