(b) Suppose that the random variables X and Y have the joint p.d. f. f(x, y) = {kx(x – y),0 < x < 2,–x < y < x elsewhere (i) Evaluate the constant k. (ii) Find the marginal p. d. f. of the two random variables.

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(b) Suppose that the random variables X and Y have the joint p. d. f.
(kx(х — у),0 < х < 2,—х <у<х
f(x, y) =
elsewhere
(i)
Evaluate the constant k.
(ii)
Find the marginal p. d. f. of the two random variables.
Transcribed Image Text:(b) Suppose that the random variables X and Y have the joint p. d. f. (kx(х — у),0 < х < 2,—х <у<х f(x, y) = elsewhere (i) Evaluate the constant k. (ii) Find the marginal p. d. f. of the two random variables.
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