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Mathematics, 23.04.2020 22:40 shyann78

There are 9 students in a class: 7 girls and 2 boys.
If the teacher picks a group of 3 at random, what is the probability that everyone in the group is a girl?

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There are 9 students in a class: 7 girls and 2 boys.
If the teacher picks a group of 3 at rand...
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