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In a class 22 of students, 14 have a brother and 9 have a sister. There are 2 students who do not have any siblings. What is the probability that a student chosen randomly from t…
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In a class 22 of students, 14 have a brother and 9 have a sister. There are 2 students who do not have any siblings. What is the probability that a student chosen randomly from t…
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Aug 21, 2018
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In a class 22 of students, 14 have a brother and 9 have a sister. There are 2 students who do not have any siblings. What is the probability that a student chosen randomly from the class has a sibling?
Mathematics
middle-school
Prasanna Anbazhagan
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Prasanna Anbazhagan
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I believe this is the way to solve it.
22 - 2 = 20
20 is 90.9% of 22
So the probability of choosing a student with a sibling at random should be 90.9% (or you can round up to 91%)
I hope this helps :)
Zjzjzj
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Aug 27, 2018
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Zjzjzj
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