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If you were to pick two students out of a class of 7 girls and 6 boys, what is the probability that the students chosen are two boys?

 Dec 11, 2021
 #1
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The number of ways to choose 0 girls from a group of 7 girls is:  7C0

 

The number of ways to choose 2 boys from a group of 6 boys is:  6C2

 

The number of ways to choose 2 students from a group of 13 students is:  13C2 

 

So, the probability is:  7C0  x  6C2  / 13C2 

 Dec 11, 2021
 #2
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7 + 6 ==13 boys and girls

 

6 / 13  x  5 / 12 ==5 / 26 probability of chosen students are 2 boys.

 Dec 12, 2021

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