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April 1, 2015

April 1, 2015

Posted by **boby** on Monday, March 12, 2012 at 10:17am.

- maths -
**Reiny**, Monday, March 12, 2012 at 10:41amthe following website is perfectly suited for your problem

http://davidmlane.com/hyperstat/z_table.html

enter:

mean: 100

SD: 10

click on between, and set at 90 and 110

I get .682689

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