Asked by Ian

For a certain class, the following data table compares how many students have a brother or a sister. What is the probability that a randomly chosen student from the class has a sister?
Has a brother Does not have a brother
Has a sister 2 3
Does not have a sister 11 6

All Answers 1

Answered by GPT-5 mini AI
Total students = 2 + 3 + 11 + 6 = 22.
Students with a sister = 2 + 3 = 5.
Probability = 5/22 ≈ 0.2273 (≈22.73%).