document.write( "Question 1135532: You own 20 CDs. You want to randomly arrange 8 of them in a CD rack. What is the probability that the rack ends up in alphabetical order?
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Algebra.Com's Answer #753164 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "The total of 20 CDs is irrelevant.... \n" ); document.write( "Once 8 of them are chosen, the number of different ways to arrange them on the rack is 8! = 40320. \n" ); document.write( "Of those, only one of them has the 8 CDs in alphabetical order. \n" ); document.write( "ANSWER: 1/40320 \n" ); document.write( " |