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Mathematics, 24.03.2021 01:20 msandy7
In a class of 30 students, 9 have a brother and 17 have a sister. There are 7 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 30 students, 9 have a brother and 17 have a sister. There are 7 students who have a br...
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