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A. (ii)
B. (iii)
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 = 0, 1, 2. Describe the marginal probability distribution of Y.
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C. (iv)
D. (i)
FUO.sh
sh the exam.
Y
0
1
2
(i)
P(Y=k) 10c
15c
18c
Y
0
1
2
(ii) P(Y=k) | 10c
14c
18c
Y
0
1
2
12c
15c
(iii) P(Y=k) 9c
X
0
1
2
12c 16c
(iv) P(Y=k) 9c
