Kizspy | Question: 40
(Choose 1 answer)
(See picture)
A. (i)
B. (ii)
C. (iii)
D. (iv)
FUOVERFL
Let c be the number such that f(x,y)=c(x+y) is the joint probability distribution of two discrete random variables X and Y, where x=1,2,3,4 and y=1 2, 3. Describe the marginal probability distribution of X.
(i)
P(X=k)
1 6c
2 3c 9c
3 12c
4 15c
(ii)
P(X=k)
6c 1
10c 2
14c
18c
(ii)
P(X=k)
X
9c 1
1
12c
2
15c
3
18c 4
4
(iv)
P(X=k)
10c
14c
18c
22c
