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Mathematics, 11.03.2020 21:36 quetzaliescalona
12. A bag has 10 marbles, and 7 are black. Petra picks 2 marbles without replacing the first. What is the probability
that both are black?
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12. A bag has 10 marbles, and 7 are black. Petra picks 2 marbles without replacing the first. What i...
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