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Mathematics, 01.04.2022 06:10 shartiarahoward

A box contains 7 balls numbered 1,2,3,4,5,6,7. Three balls are drawn at random and without replacement. Let X be the number of 2's drawn in the experiment.

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A box contains 7 balls numbered 1,2,3,4,5,6,7. Three balls are drawn at random and without replaceme...
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