document.write( "Question 810453: suppose that an urn contains 4 green marbles, 7 black marbles, and 9 white marbles. if one marble is selected determine the probability that it is green \n" ); document.write( "
Algebra.Com's Answer #488257 by stanbon(75887)\"\" \"About 
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suppose that an urn contains 4 green marbles, 7 black marbles, and 9 white marbles. if one marble is selected determine the probability that it is green\r
\n" ); document.write( "\n" ); document.write( "p(green) = 4/20 = 1/5
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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