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A bag contains 10 red marbles, 10 white marbles, and 6 blue marbles. You draw 4 marbles out at random, without replacement. What is the

A bag contains 10 red marbles, 10 white marbles, and 6 blue marbles. You draw 4 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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