Mathematics, 06.05.2021 03:30 panpanriser76

A bag contains 3 gold marbles, 10 silver marbles, and 20 black marbles. The rules of the game are as follows: You randomly select one marble from the bag. If it is gold, you win $4, if it is silver, you win
$2. If it costs $1 to play, what is your expected profit or loss if you play this game?

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