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You own 7 compact discs (CDs). You want to randomly arrange 5 of them in a...

You own 7 compact discs (CDs). You want to randomly arrange 5 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.

There is a ___________ probability that the rack ends up in alphabetical order.

Math   Statistics-And-Probability   
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