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[skyoo-nis] /ˈskyu nɪs/
noun, Statistics.
asymmetry in a frequency distribution.
a measure of such asymmetry.
Origin of skewness
1890-95; skew + -ness Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for skewness
  • Over the past thirty-five years, and especially over the past ten, that top-end skewness has greatly increased.
  • skewness-a measure of the symmetry of a distribution.
  • We test this conjecture by examining the skewness of market returns.
  • As the absolute value of g increases, the amount of the skewness increases.
  • The skewness statistic, on the other hand, appears to have a large product- or industry-specific component.
  • skewness is a measure of the departure of the distribution of a random variable from symmetry.
  • skewness: a measure of the tendency for the distribution of values to be more spread out on one side than the other.
British Dictionary definitions for skewness


the quality or condition of being skew
(statistics) a measure of the symmetry of a distribution around its mean, esp the statistic B1 = m3/(m2)3/2, where m2 and m3 are respectively the second and third moments of the distribution around the mean. In a normal distribution, B1 = 0 See kurtosis
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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Word Origin and History for skewness

1877, from skew + -ness.

Online Etymology Dictionary, © 2010 Douglas Harper
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