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Mathematics, 23.11.2021 02:00 gunruner21

Please help I can't for the life of me figure out what I'm doing wrong with this question. A bag contains 7 red marbles, 10 white marbles, and 10 blue marbles. You draw 3 marbles out at random, without replacement. What is the probability that all the marbles are red?

The probability that all the marbles are red is ___%.

What is the probability that exactly two of the marbles are red?
The probability that exactly two of the marbles are red is
%.

What is the probability that none of the marbles are red?
The probability of picking no red marbles is %.

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