Difference between revisions of "statistics"
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To average normalized data use the '''Geometric Mean'''. Do not use the '''Arithmetic Mean''' to average normalized data. | To average normalized data use the '''Geometric Mean'''. Do not use the '''Arithmetic Mean''' to average normalized data. | ||
| − | The '''Geometric Mean''' of | + | The '''Geometric Mean''' of '''n''' numbers is the product of the numbers to the 1/n<sup>th</sup> power. |
| − | GM = ( | + | GM = (N<sub>1</sub> * N<sub>2</sub> * ... * N<sub>n</sub>) <sup>(1/n)</sup> |
Revision as of 11:38, 20 August 2015
To average normalized data use the Geometric Mean. Do not use the Arithmetic Mean to average normalized data.
The Geometric Mean of n numbers is the product of the numbers to the 1/nth power.
GM = (N1 * N2 * ... * Nn) (1/n)
(n∏i=1 ai ) (1/n)
