Consider a ferry that can carry both cars and campers across a waterway. Each trip costs the owner approximately $10. The fee for cars is $3 and the fee for campers is $9. Let X and Y be the number of cars and campers, respectively on a given trip. Suppose the probabilities for different values of X and Y are given by the following table.

X V 0) y=1 V=2 0.01 0.01 0.03 0.03 0.08 0.07 0.03 0.06 0.06 0.07 0.07 0.13 0.12 0.04 0.03 0.08 0.07 0.01