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## Main Question or Discussion Point

Would anyone kindly be able to show me how to solve a problem like this?

Suppose there are 8 white balls, 7 black balls and 4 red balls in an urn. If three balls are selected from the urn without replacement, what is the probability that two of them only are red?

Suppose there are 8 white balls, 7 black balls and 4 red balls in an urn. If three balls are selected from the urn without replacement, what is the probability that two of them only are red?