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| Math Central | Quandaries & Queries |
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Question from amper, a student: A class has 12 boys and 4 girls. If three students are selected at random from the class, |
Hi Amper,
How many ways are there of selecting 3 students from the 16 in the class? This is the number of ways of choosing 3 things from 16 things.
How many ways are there of selecting 3 students from the 12 boys?
The probability is the number of ways of selecting 3 students from the 12 boys divided by the number of ways of selecting 3 students from the 16 in the class.
Penny
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