document.write( "Question 541910: How many ways can
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document.write( "20 diseases be selected from 30? \n" );
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Algebra.Com's Answer #354335 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! How many ways can \n" ); document.write( "20 diseases be selected from 30? \n" ); document.write( "===== \n" ); document.write( "Selecting 20 from 30 is the same as not selecting 10 from 30 \n" ); document.write( "--- \n" ); document.write( "30C20 = 30C10 = 30,045,015 ways \n" ); document.write( "------------ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "============ \n" ); document.write( " |