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Mathematics, 08.06.2021 20:30 zhp7171

Geraldine has a box of 13 coloured pens: 3 blue , 4 red , and the rest black. What is the probability of drawing two blue pens at random, one at a time without replacement?

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Geraldine has a box of 13 coloured pens: 3 blue , 4 red , and the rest black. What is the probabilit...
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