Find the probability.

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An urn contains four red balls, six white balls, five black balls, and five blue balls. What is the probability that there are exactly 2 white balls, 2 black balls, and 2 blue ball when 6 balls are drawn randomly and with replacement from the urn?

Oct 19th, 2017

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Total number of balls is 20

Probability = 6/20 x 6/20 x 5/20 x 5/20 x 5/20 x 5/20 = 22,500/64,000,000

 = 0.00035156

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Jun 21st, 2015

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