Mathematics, 18.04.2020 05:44 vrw28

Xander spends most of his time with his 10 closest friends. He has known 4 of his 10 friends since kindergarten. If he is going to see a movie tonight with 3 of his 10 closest friends, what is the probability that the first 2 of the friends to show up to the movie are friends he has know since kindergarten but the third is not?

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Xander spends most of his time with his 10 closest friends. He has known 4 of his 10 friends since k...