SOLUTION: You own 11 CDs. You want to randomly arrange 9 of them in a CD rack. What is the probability that the rack ends up in alphabetical order? Be sure to leave your answer as a fraction

Algebra ->  Probability-and-statistics -> SOLUTION: You own 11 CDs. You want to randomly arrange 9 of them in a CD rack. What is the probability that the rack ends up in alphabetical order? Be sure to leave your answer as a fraction      Log On


   

Question 1180236: You own 11 CDs. You want to randomly arrange 9 of them in a CD rack. What is the probability that the rack ends up in alphabetical order? Be sure to leave your answer as a fraction in order to earn credit.
Answer by greenestamps(13196) About Me  (Show Source):
You can put this solution on YOUR website!


The number of ways to arrange the 9 you pick is 9!; only 1 of those ways has them in alphabetical order.

ANSWER: 1/9! = 1/362800