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kurtosis

American  
[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.

kurtosis British  
/ kəˈtəʊsɪs /

noun

  1. statistics a measure of the concentration of a distribution around its mean, esp the statistic B 2 = m 4 / m 2 ² where m 2 and m 4 are respectively the second and fourth moment of the distribution around the mean. In a normal distribution B 2 = 3 See also platykurtic mesokurtic leptokurtic Compare skewness

"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
kurtosis Scientific  
/ kər-tō′sĭs /

  1. The general form or a quantity indicative of the general form of a statistical frequency curve near the mean of the distribution.

Etymology

Origin of kurtosis

1900–05; irregular transliteration of Greek kýrtōsis curvature. See cyrtosis

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.