Difference between revisions of "statistics"
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[[Category: Engineering]] | [[Category: Engineering]] | ||
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+ | == Use the Geometric Mean == | ||
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. |
Revision as of 11:39, 20 August 2015
Use the Geometric Mean
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)