3. (5 marks) The joint density of X and Y is given as else Find the...
6. (5 marks) The joint density of X and Y is given as 0, else Find the probability density function of U-Y/X. Use any method you wish.
6. (5 marks) The joint density of X and Y is given as 0, else Find the probability density function of U-Y/X. Use any method you wish
1. (15 marks) The joint density of X and Y is given as f(x.))-o, else a) (5 marks) Find the probability density function of W-Y", where a>0 b) (5 marks) Find the probability density function of U- XY 0(5 marks) Find the probability density function of V-X-Y
Use the Method of Distribution Functions 3. (5 marks) The joint density of X and Y is given as , else Use the Method of Distribution Functions Find the probability density function of U- X-Y.
Use Multivariate Transformations 7. (10 marks) The joint density of X and Y is given as f(x,y)=10, else a) (5 marks) Find the joint probability density function of = X / y and V = X. b) (5 marks) Using your result in (a), find the marginal density of V.
Use the method of distribution functions 3. (5 marks) The joint density ofX and Y is given as 0 , else Find the probability density function of UX-Y.
Consider the joint density function f(x, y) = else (a) Find the marginal density functions for X and Y (b) Compute P(Y 亻1/2/X 3/4). (c) Find the conditional density function X given Y = y. (d) Compute P(Y 1/2lX-3/4).
2. (5 marks) Consider a random variable Y with density function 31 ,else Find the probability density function of U 4-Y2
4. The random variables X and Y have joint probability density function fx.y(r, y) given by: else (a) Find c (b) Find fx (r) and fr (u), the marginal probability density functions of X and Y, respectively (c) Find fxjy (rly), the conditional probability density function of X given Y. For your limits (which you should not forget!), put y between constant bounds and then give the limits for r in terms of y. (d) Are X and Y independent?...
1. Consider the joint probability density function 0<x<y, 0<y<1, fx.x(x, y) = 0, otherwise. (a) Find the marginal probability density function of Y and identify its distribution. (5 marks (b) Find the conditional probability density function of X given Y=y and hence find the mean and variance of X conditional on Y=y. [7 marks] (c) Use iterated expectation to find the expected value of X [5 marks (d) Use E(XY) and var(XY) from (b) above to find the variance of...