Mathematics, 28.05.2021 07:40 Tyrant4life

In a class of 25 students, 5 have a brother and 11 have a sister. There are 2 students who have a brother and a sister. What is the probability that a student chosen randomly from the class has a brother and a sister?

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In a class of 25 students, 5 have a brother and 11 have a sister. There are 2 students who have a br...

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