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Distributionsmedium
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Suppose XXX and YYY are independent random variables where X∼N(1,4)X \sim N(1, 4)X∼N(1,4) and Y∼N(2,5)Y \sim N(2, 5)Y∼N(2,5). What is the distribution of W=X−YW = X - YW=X−Y?