Answer to Question #348245 in Statistics and Probability for Morongwa

Question

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 .

Answer 1

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