chisquare
[ kahyskwair ]
/ ˈkaɪˌskwɛər /

noun Statistics.
a quantity equal to the summation over all variables of the quotient of the square of the difference between the observed and expected values divided by the expected value of the variable.
Nearby words
chi, chi kung, chi meson, chi particle, chirho, chisquare, chisquare distribution, chisquare test, chitse, chia, chiack
Origin of chisquare
First recorded in 1935–40
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for chisquare
In a fourfold table, the value of chisquare (14.7) is significant and indicates that the frequencies are not proportional.
The Biotic Associations of CockroachesLouis M. RothThe significance of each difference reported was calculated by the Chisquare test and the confidence limit is given in each case.
Medicine definitions for chisquare
chisquare
n.
A test statistic that is calculated as the sum of the squares of observed values minus expected values divided by the expected values.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Science definitions for chisquare
chisquare
[ kī′skwâr′ ]
A test statistic that is calculated as the sum of the squares of observed values minus expected values divided by the expected values.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.