JohnJames150
New member
- Joined
- Nov 12, 2015
- Messages
- 1
If X and Y are two discrete random variables with joint probability function (x+y)/21 for x=1,2,3 and y=1,2
a) How would you derive the marginal probability functions g(x) and h(y) and are X and Y independent?
b) How would you compute E(X) and E(Y) and Cov(X,Y)
a) How would you derive the marginal probability functions g(x) and h(y) and are X and Y independent?
b) How would you compute E(X) and E(Y) and Cov(X,Y)