Suppose that a box contains 40 red balls 30 black balls and

Suppose that a box contains 40 red balls, 30 black balls, and 20 yellow balls. A sample of five balls is drawn without replacement. Let x = number of red, y = number of black and z = number of yellow. Find the probability that x = 1, y = 1, and z=3. Find the joint pdf of X and Z. Suppose that X and Y are continuous random variables with joint pdf Find the marginal pdf\'s of X and Y. Are X and Y independent? Find P(X > 3). Find P(X > Y). Find P(X + Y > 3). Suppose that X and Y are continuous random variables with CDF Find the joint pdf, f(x,y). P(X

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