# Probability (n balls and n containers)

**URL:** <https://boards.straightdope.com/t/probability-n-balls-and-n-containers/259443>\
**Category:** Factual Questions\
**Created:** [August 11, 2004, 10:36pm UTC](https://boards.straightdope.com/t/probability-n-balls-and-n-containers/259443 "2004-08-11T22:36:09Z")\
**Posts on this page:** 1\
**Page:** 3

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**Author:** ![Josh\_dePlume](https://avatars.discourse-cdn.com/v4/letter/j/bbe5ce/32.png) [@Josh\_dePlume](https://boards.straightdope.com/u/Josh_dePlume)\
**Post date:** [August 14, 2004, 5:43pm UTC](https://boards.straightdope.com/t/probability-n-balls-and-n-containers/259443/41 "2004-08-14T17:43:42Z")

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OK, I was just trying to be clear on what the answer was, and I thought that you were asking me to point out the flaw in the reasoning leading to n!n(n-1)!(n-1)/(2n-1)!. I apologize for any confusion on my part. The blood won’t be necessary, but depending on your MHC type I might be interested in a kidney.

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