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f(x, y) = k(1x) 0xy1 and 0 otherwise 1. Find the value of k that makes f(x, y) a valid joint PDF 2. Find P(X3/4,

f(x, y) = k(1x) 0xy1 and 0 otherwise

1. Find the value of k that makes f(x, y) a valid joint PDF

2. Find P(X3/4, Y1/2)

3. Find the marginal PDF of X,f(x). Make sure to include the appropriate support.

4. Find the expected value of X

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