Стандартнае адхіленьне: розьніца паміж вэрсіямі
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* [http://standard-deviation.appspot.com/ A simple way to understand Standard Deviation]
* [https://web.archive.org/web/20110211040323/http://stats4students.com/measures-of-spread-3.php A Guide to Understanding & Calculating Standard Deviation]
* [http://www.usablestats.com/tutorials/StandardDeviation Interactive Demonstration and Standard Deviation Calculator]
* [http://www.techbookreport.com/tutorials/stddev-30-secs.html Standard Deviation — an explanation without maths]
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