Suppose you go to a casino where you see a game. There is 1 bag kept in which there are 3 green balls and 2 red balls. Without looking, you have to take out 1 ball. If the ball turns out to be green, then you have to put it on the table. Once again, you have to put your hand in the bag (without looking) and take out 1 more ball. If this ball also turns out to be green(i.e., both the balls to be green), then you have won the game and you will get 1$. The entry-fee for the game is 35 cents (0.35$). If you play the game then you will be in-
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P(Win)=(3/5)(2/4)=3/10=three wins out of ten bets
So 3.00 win for 3.50 bet, loss