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kurtosis

[kur-toh-sis]

noun Statistics.

the state or quality of flatness or peakedness of the curve describing a frequency distribution in the region about its mode.

Nearby words

  1. kurrajong,
  2. kursaal,
  3. kursk,
  4. kurt,
  5. kurta,
  6. kuru,
  7. kurukh,
  8. kurume,
  9. kurunegala,
  10. kurus

Origin of kurtosis

1900–05; irregular transliteration of Greek kýrtōsis curvature. See cyrtosis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for kurtosis

kurtosis

noun

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 = 3See also platykurtic, mesokurtic, leptokurtic Compare skewness

Word Origin for kurtosis

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
Science definitions for kurtosis

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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.