document.write( "Question 284627: Suppose that an urn contains 3 green marbles, 11 black marbles, and 6 yellow marbles. If one marble is selected, determine the probability that it is black.\r
\n" ); document.write( "\n" ); document.write( "Here is my solution:
\n" ); document.write( "3 + 11 + 6 = 20
\n" ); document.write( "black marbles = 11\r
\n" ); document.write( "\n" ); document.write( "answer: 11/20.
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Algebra.Com's Answer #206477 by richwmiller(17219)\"\" \"About 
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By George I think you have got it! \n" ); document.write( "
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