QUESTION 22
Consider the bivariate distribution of X and Y as given in the following table.
X
Y 0 1 2
0 0:04 0:05 0:18
1 0:12 0:08 0:14
2 0:13 0:09 0:17
(a) Calculate the marginal probability of X. (3)
(b) Calculate the marginal probability of Y . (3)
(c) Calculate the mean and the variance of X. (7)
(d) Calculate the mean and the variance of Y .
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