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# probability of 11/11/11

This is not an academic problem per say, but your website was recommended to me for figuring out the statistical significance of my niece turning 11 y/o on 11/11/11 (November 11, 2011) at 11:11 am.

I presume that such a birthday can only occur once a century for November 11th to fall on the 11th year of a century ... but how rare is it that someone will turn 11 on 11/11/11 at 11:11 am (or 11:11 pm for that matter)?

I would like to document the significance of this occurrence for her birthday.

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I think this will help you:

http://www.masslive.com/news/index.ssf/2010/10/rachel_wenninger_of_ludlow_wil.html

You have to ...

#### Solution Summary

This is not an academic problem per say, but your website was recommended to me for figuring out the statistical significance of my niece turning 11 y/o on 11/11/11 (November 11, 2011) at 11:11 am.

I presume that such a birthday can only occur once a century for November 11th to fall on the 11th year of a century ... but how rare is it that someone will turn 11 on 11/11/11 at 11:11 am (or 11:11 pm for that matter)?

I would like to document the significance of this occurrence for her birthday.

\$2.19