Mathematics, 23.02.2021 05:20 ineedhelp2285

In a class of 27 students, 10 have a brother and 12 have a sister. There are 4 students who have a brother and a sister. What is the probability that a student who has a
sister also has a brother?

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In a class of 27 students, 10 have a brother and 12 have a sister. There are 4 students who have a...

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In a class of 27 students, 10 have a brother and 12 have a sister. There are 4 students who have a brother and a sister. What is the probability that a student who has a sister also has a brother?

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Another question on Mathematics

In a class of 27 students, 10 have a brother and 12 have a sister. There are 4 students who have a brother and a sister. What is the probability that a student who has a
sister also has a brother?