Find the marginal (i.e., unconditional) distributions of X and Y, namely, f (X )
and f (Y) .
Find the conditional probability f (X = 2 |Y = 0) and f (Y = 4 | X = 3) .
What is the average number of PCs sold per day? And What is the average
number of printers sold per day?
Compute the (unconditional) variance of 5X, var(5X ) .
Compute the covariance cov(2X-1, 2-Y) between the two random
variables, 2X-1 and 2 -Y .
.
Compute E(Y | X = 3) .
Compute the conditional variance of Y given that X is 3, Var(Y | X = 3) .
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