53.An urn contains six red balls and five blue balls. Four balls are drawn at random,...

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53.An urn contains six red balls and five blue balls. Four balls are drawn at random,...

53.An urn contains six red balls and five blue balls. Four balls are drawn at random, without replacement.

(a) What is the probability that all four balls are red? (Round your answer to four decimal places.)

(b) What is the probability that two of the balls are red and two are blue? (Round your answer to four decimal places.)

math Statistics-And-Probability

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