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Mathematics, 10.02.2021 03:40 mandyO1
There are 10 students in a class: 3boys and 7 girls. 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 10 students in a class: 3boys and 7 girls.
If the teacher picks a group of 3 at random, w...
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