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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?
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16 votes
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?

User Scrowler
by
3.5k points

2 Answers

12 votes

Answer:2

Explanation:

User Daniel Kilinskas
by
3.7k points
10 votes

Answer:

2/5 or 0.4

Explanation:

User Kliron
by
4.3k points
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