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In a class 22 of students, 10 have a brother and 11 have a sister. There are 4 students who have a brother and a sister. What is the probability that a student chosen randomly f…

In a class 22 of students, 10 have a brother and 11 have a sister. There are 4 students who have a brother and a sister. What is the probability that a student chosen randomly f…
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1 vote
In a class 22 of students, 10 have a brother and 11 have a sister. There are 4 students who have a brother and a sister. What is the probability that a student chosen randomly from the class has a brother?

User Mekel
by
8.0k points

1 Answer

4 votes

Answer:

5/11 or 0.4545

Explanation:

10/22 = 5/11 or 0.4545

User Tony Arnold
by
8.2k points
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