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arithmetic mean

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arithmetic mean

–noun Statistics.
the mean obtained by adding several quantities together and dividing the sum by the number of quantities: the arithmetic mean of 1, 5, 2, and 8 is 4.
Also called average.


Origin:
1790–1800
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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ar·ith·met·ic mean   (ār'ĭth-mět'ĭk)
n.  The value obtained by dividing the sum of a set of quantities by the number of quantities in the set. Also called average.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

arithmetic mean a·rith·me·tic mean (ə-rĭth'mĭ-tĭk)
n.
The value obtained by calculating the sum of a set of quantities and then dividing that sum by the number of quantities in the set. Also called average.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Computing Dictionary

arithmetic mean mathematics
The mean of a list of N numbers calculated by dividing their sum by N. The arithmetic mean is appropriate for sets of numbers that are added together or that form an arithmetic series. If all the numbers in the list were changed to their arithmetic mean then their total would stay the same.
For sets of numbers that are multiplied together, the geometric mean is more appropriate.
(2007-03-20)

The Free On-line Dictionary of Computing, © 1993-2007 Denis Howe
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