Statistics ITU Board 2081
Suppose X and Y are independent random variables having the joint probability distribution: f(x, y) X=2 X=4 Y=1 0.10 0.20 Y=3 0.15 0.30 Y=5 0.20 0.05 Find: (i) marginal probability distribution of X…
5Suppose X and Y are independent random variables having the joint probability distribution:
f(x, y)
X=2
X=4
Y=1
0.10
0.20
Y=3
0.15
0.30
Y=5
0.20
0.05
Find:
(i) marginal probability distribution of X and Y.
(ii) E(X)
(iii) E(Y)
(iv) E(2X+3Y)
(v) E(XY).
A worked answer is on its wayMeanwhile, read the Statistics I notes for this topic.
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