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There are 20 marbles. 12 are red and 8 are blue. Renan chooses 5 marbles without replacement. What is the probability that (1) they are all red?
(2) the first two are red and the next three are blue?
(3) exactly two of them are red?

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There are 20 marbles. 12 are red and 8 are blue. Renan chooses 5 marbles without replacement. What i...

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