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Q1. Suppose that the random variables X and Y have a joint probability density function (pdf) given by f (x, y) = 3x, for OSy

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Q1. Suppose that the random variables X and Y have a joint probability density function (pdf) given by f (x, y) = 3x, for OSy 0.5, Y > 0.6). [3 marks] c) Given that E(X) =3/4, E(Y) =3/8, and Var(Y) =19/320, find Var(X - Y). [7 marks]

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