Mathematics, 08.06.2021 04:40 Salas1333
in a class of 30 students, 5 have a brother and 23 have a sister. there are 2 students who have a brother and a sister. what is the probability that a student has a sister also has a brother
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in a class of 30 students, 5 have a brother and 23 have a sister. there are 2 students who have a br...
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