From Kay 821 if the joint PMF of X and Y is uniformly distri
From Kay 8.21, if the joint PMF of X and Y is uniformly distributed over the points SXY = (0,0), (1,0), (1,1), (2,0), (2,1), (2,2)), x,Y (a) Find pypxbild. (b) Find pxiy (c) Find EYlxlYla]. (d) Find Exj[Xlu)
Solution
The marginal distribution of X and Y is
The marginal distribution of X and Y is
(a)
pY|X[j|i]
(b)
| x\\y | 0 | 1 | 2 | |
| 0 | 1/6 | 0 | 0 | 1/6 |
| 1 | 1/6 | 1/6 | 0 | 2/6 |
| 2 | 1/6 | 1/6 | 1/6 | 3/6 |
| Total | 3/6 | 2/6 | 1/6 | 1 |
