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Mathematics, 22.01.2021 17:30 adam463

In a class of 25 students, 14 have a brother and 17 have a sister. There are 5 students who do not have any siblings. What is the probability that a student who has a brother also has a sister?

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In a class of 25 students, 14 have a brother and 17 have a sister. There are 5 students who do not h...
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