document.write( "Question 810448: Suppose an urn contains 8 red, 5 white, and 7 blue marbles. If three marbles are drawn st random from the urn without replacement, what is the probability that all three marbles are red? \n" ); document.write( "
Algebra.Com's Answer #488163 by oscargut(2103)\"\" \"About 
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(8C3)/(20C3) = 56/1140 = 14/285\r
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