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harmonic mean

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harmonic mean

–noun Statistics.
the mean obtained by taking the reciprocal of the arithmetic mean of the reciprocals of a set of nonzero numbers.

Origin:
1880–85
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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harmonic mean  
n.  The reciprocal of the arithmetic mean of the reciprocals of a specified set of numbers.
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

harmonic mean har·mon·ic mean (här-mŏn'ĭk)
n.
The reciprocal of the arithmetic mean of the reciprocals of a specified set of numbers.

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