Consider the two-dimensional house in Figure. Suppose that a fly is still found somewhere in the house, with joint density
fX,Y(x,y) = 1/150
for x,y in the house,
and fX,Y(x,y) = 0 otherwise. (We no longer assume X = 2.)
a. Find E(X).
b. Find Var(X).
c. Find E(Y).
d. Find Var(y).

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