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normal distribution

noun, Statistics.
a theoretical frequency distribution represented by a normal curve.
Also called Gaussian distribution.
Origin of normal distribution
First recorded in 1895-1900 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for normal distribution
Historical Examples
  • The idea is but the shadow of the theories of normal distribution mentioned in preceding chapters.

  • Such boon-work was considered as a kind of surplus demand; it exceeded the normal distribution of work.

    Villainage in England Paul Vinogradoff
  • The frequency distribution of breeding activity in birds is described by a nonlinear curve (a normal distribution is nonlinear).

    The Breeding Birds of Kansas Richard F. Johnston
British Dictionary definitions for normal distribution

normal distribution

(statistics) a continuous distribution of a random variable with its mean, median, and mode equal, the probability density function of which is given by (exp-[(x–μ)²/2σ²]/σ√(2π)) where μ is the mean and σ² the variance Also called Gaussian distribution
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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normal distribution in Science
normal distribution
A theoretical frequency distribution for a set of variable data, usually represented by a bell-shaped curve symmetrical about the mean.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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