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A bag contains 8 yellow marbles, 16 red marbles, 3 blue marbles, and 3 black marbles. What is the probability of drawing a black marble out of the bag? A. B. C. D.
Where are the choices ? ? There are 30 marbles in the bag, and 3 of them are black. So the probability of getting a black with a random draw is 3/30 = 10% .
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