Question: 2.8 A density function is defined as f(x, y) = K(x + 2y) if 0

2.8 A density function is defined as f(x, y) = 

K(x + 2y) if 0

a) Find the value of K which makes the function a probability density function.

b) Find the marginal distributions of X and Y.

c) Find the joint cdf of (X, Y).

d) Find the pdf of the random variable Z = 5

(X + 1)

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