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Mathematics, 29.10.2020 04:10 shemarmcdonald4662
In a class 21 of students, 7 have a brother and 6 have a sister. There are 4 students who have a brother and a sister. What is the probability that a student who has a brother also has a sister?
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In a class 21 of students, 7 have a brother and 6 have a sister. There are 4 students who have a bro...
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