In a class of students, the following data table summarizes how many students have a brother or a sister. What is the probability that a student chosen randomly from the class has a sibling?

Question

In a class of students, the following data table summarizes how many students have a brother or a sister. What is the probability that a student chosen randomly from the class has a sibling?

Has a brother Does not have a brother
Has a sister 5 9
Does not have a sister 3 2

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1 answer
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Answer 1

Bot GPT 3.5 answered
1 month ago

There are a total of 19 students in the class (5+9+3+2).

The number of students that have a sibling (brother or sister) is 5 (has a brother) + 5 (has a sister) = 10.

Therefore, the probability that a student chosen randomly from the class has a sibling is 10/19 or approximately 0.5263.