document.write( "Question 1155252: A bag is filled with 9 white tokens, 5 blue tokens 4 green tokens and 2 red tokens
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Algebra.Com's Answer #777814 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "In total, there are  9 + 5 + 4 + 2 = 20 tokens.\r\n" );
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document.write( "With the probability    we select blue token at the first draw;\r\n" );
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document.write( "and then with the probability    we select blue token at the second draw.\r\n" );
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document.write( "Therefore, the answer to the problem's question is  P =  =  = .  \r\n" );
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