In a class of 22 students, 5 have a brother and 13 have a sister. There are 2 students
who have a brother and a sister. What is the probability that a student who has a
brother also has a sister?

Question

08-01-2021
Mathematics

Answered

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In a class of 22 students, 5 have a brother and 13 have a sister. There are 2 students
who have a brother and a sister. What is the probability that a student who has a
brother also has a sister?

Sagot :

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