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April 19, 2014

April 19, 2014

Posted by **apryl** on Sunday, August 28, 2011 at 9:00pm.

- alegbra -
**Reiny**, Sunday, August 28, 2011 at 9:33pmnumber of all possible plates

=10^3 * 26^5 * 10

= 118813760000 (this includes all types of repetition)

number of plates without any repetition

= 10*9*8*26*25*24*23*22*7

3.9783744 x 10^10

so prob of some kind of repeat

= 1 - 3.9783744 x 10^10/118813760000

= .665

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