Question: Need help answering this practice problem. 3. Consider the joint PDF of random variables X and Y given by fx,x (x, y) = Ce-Ixl-2lyl (a)

Need help answering this practice problem.

3. Consider the joint PDF of random variables X and Y given by fx,x (x, y) = Ce-Ixl-2lyl (a) Determine the value of the constant C. (b) Calculate the mean of X + 2Y. [10 pts] (c) Calculate the conditional PDF fxy (xly). (d) Are X and Y independent? Justify your

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