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Mathematics, 20.07.2019 13:00 puchie1225
There are 3 black marbles and 4 red marbles in a bag. what is the probability of picking a black marble, replacing it back in the bag, and then choosing another black marble? 1) 3/8 2) 9/49 3) 5/13 4) 1/7
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There are 3 black marbles and 4 red marbles in a bag. what is the probability of picking a black ma...
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