Mathematics, 10.04.2020 05:02, Seena912

There are 101010 students in a class: 777 boys and 333 girls.
If the teacher picks a group of 444 at random, what is the probability that everyone in the group is a boy?

Answers: 3

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There are 101010 students in a class: 777 boys and 333 girls.
If the teacher picks a group of...