Statistics help? Online class killing me!?

A certain carnival game requires the player to draw two marbles without replacement from a bag containing 3 red marbles, 5 blue marbles, and 4 white marbles. If the player draws two red marbles in a row, the player wins $50.00. If the player draws two white marbles in a row, he wins $25.00. It the player draws two blue marbles in a row, he wins $10. Any other combination of colors wins nothing. It costs $10.00 to play this carnival game.

Find the probability distribution for x = net amount of money you could win on one play of this game. Round probabilities to the nearest thousandth.

How much of the original $10.00 bet is a player getting back each time he plays the game, on average? Round to the nearest cent. Use the rounded probability values from your table.

How much is the carnival making per game on average?
 
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