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There are 7 students in a class: 2 boys and 5 girls. If the teacher picks a group of $4$ at random, what is the probability that everyone in the group is a girl?

 Dec 20, 2021
 #1
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Probability = 17

 Dec 21, 2021
 #2
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The probability is: 5/7  x  4/6  x  3/5  x  2/4==120/840==1/7

 Dec 21, 2021

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