In a class of 30 students, 16 have a brother and 7 have a sister. There are 11 students who do not have any siblings. What is the probability that a student has a sister given that they have a brother?

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03-11-2022
Mathematics

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In a class of 30 students, 16 have a brother and 7 have a sister. There are 11 students who do not have any siblings. What is the probability that a student has a sister given that they have a brother?

Sagot :

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In a class of 30 students, 16 have a brother and 7 have a sister. There are 11 students who do not have any siblings. What is the probability that a student has a sister given that they have a brother?​

Sagot :

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In a class of 30 students, 16 have a brother and 7 have a sister. There are 11 students who do not have any siblings. What is the probability that a student has a sister given that they have a brother?