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A bag contains 2 gold marbles 8 silver marbles and 21 black marbles Someone offers...

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Basic Math

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A bag contains 2 gold marbles 8 silver marbles and 21 black marbles Someone offers to play this game You randomly select one marble from the bag If it is gold you win 3 If it is silver you win 2 If it is black you lose 1 What is your expected value if you play this game

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