  # How to choose two girls out of 3 boys and 6 girls?

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A group of students has 3 boys and 6 girls. Two are chosen at random to represent the school in a spelling competition. Find the probability that both are girls. posted Mar 29, 2014

Total number of ways to select two students = 9C2 = 36
Total number of ways to select two girls from 6 gals = 6C2 = 15
Probability = 15/36= 5/12 answer Apr 20, 2014

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