document.write( "Question 685654: a box consists of 12 light bulbs, of which 3 are defective. If you select 2 at random, without replacement, find the probability that none of the light bulbs are defective \n" ); document.write( "
Algebra.Com's Answer #424564 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! a box consists of 12 light bulbs, of which 3 are defective. If you select 2 at random, without replacement, find the probability that none of the light bulbs are defective \n" ); document.write( "---------- \n" ); document.write( "Note: # of defective = 3 ; # not-defective = 9 \n" ); document.write( "------------------------------------ \n" ); document.write( "P(none of 2 are defective) = 9C2/12C2 = 36/66 = 6/11 \n" ); document.write( "==================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |