題組內容

2、Let X and Y have the joint p.d.f. described as follows:

and f(x,y) is equal to zero elsewhere.

(3) \( (4\%) \) Compute \( \operatorname {E}(\mathrm{Y}|\mathrm{X} = 1) \) \( \operatorname {E}(\mathrm{Y}|\mathrm{X} = 2) \)