SOLUTION: Sorry but i really need help again: Efren pays $80 to play a game of chance. In an urn containing 12 balls,4 black,5 are blue and the rest are green. He draws one ball from the ur

Question 1061778: Sorry but i really need help again: Efren pays $80 to play a game of chance. In an urn containing 12 balls,4 black,5 are blue and the rest are green. He draws one ball from the urn. He will win $140 if he draws a black ball and he will win $120 if he draws a green ball. How much does Efren expect to win or lose if he plays this game 100 times?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!

So then,

So then for 100 times,

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