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Problem 5 he joint pdf of x1 and x2 is x, = 1 | 0.2 0 0 0 x, = 3 | 0.2 0 a) Find marginal pdfs pl (%) and p2(x2) b) Are x1 and x2 independent? c) Compute E(x1 + x23 d) Compute covsx,,x2 e) Compute var{5xi - 6x2J

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they are nolepenelent hej ave 9nclehndlent2 28

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