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kurtosis

[kur-toh-sis] /kɜrˈtoʊ sɪs/
noun, Statistics.
1.
the state or quality of flatness or peakedness of the curve describing a frequency distribution in the region about its mode.
Origin
1900-1905
1900-05; irregular transliteration of Greek kýrtōsis curvature. See cyrtosis
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for kurtosis
  • There is a kurtosis measure, a fourth moment as standard deviation is a second moment, for this variation.
  • kurtosis is a measure of the peakedness of the distribution.
British Dictionary definitions for kurtosis

kurtosis

/kəˈtəʊsɪs/
noun
1.
(statistics) a measure of the concentration of a distribution around its mean, esp the statistic B2 = m4/m2² where m2 and m4 are respectively the second and fourth moment of the distribution around the mean. In a normal distribution B2 = 3 See also platykurtic, mesokurtic, leptokurtic Compare skewness
Word Origin
from Greek: curvature, from kurtos arched
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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kurtosis in Science
kurtosis
  (kər-tō'sĭs)   
The general form or a quantity indicative of the general form of a statistical frequency curve near the mean of the distribution.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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