document.write( "Question 515140: A bag contains 4 blue marbles and 5 red marbles. If 2 marbles are selected at random without replacement, what is the probability that both will be blue?
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Algebra.Com's Answer #343801 by scott8148(6628)\"\" \"About 
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ways of selecting two marbles ___ 9C2\r
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\n" ); document.write( "\n" ); document.write( "ways of selecting two blue marbles ___ 4C2\r
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\n" ); document.write( "\n" ); document.write( "probability of two blue marbles ___ (4C2) / (9C2)
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