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Mathematics, 20.09.2019 05:40 alialoydd

Suppose we pick 3 students at random from a class with 10 boys and 15 girls. let x be the number of boys selected and y be the number of girls selected. find e(x-y

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Suppose we pick 3 students at random from a class with 10 boys and 15 girls. let x be the number of...

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