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egoroff_w [7]
2 years ago
10

In a class of 25 students, 14 have a brother and 17 have a sister. There are 5 students who do not have any siblings. What is th

e probability that a student who has a brother also has a sister?

Mathematics
2 answers:
cricket20 [7]2 years ago
5 0

Answer: 11

Students have both a brother and a sister

Step-by-step explanation:

I don't think probability should be used for this question because the answer is quite clear

So in a class of 25 students

5 students don't have a sibling

So 25-5=20

Total number of siblings=14+17=31 siblings in total

So 20 people have 31 siblings

31-20=11

So the answer should be 11

AnnZ [28]2 years ago
3 0

Answer:

11/14

Step-by-step explanation:

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