follow Dictionary.com

Love words? Sign up for our Word of the Day!

chi-square

[kahy-skwair] /ˈkaɪˌskwɛər/
noun, Statistics.
1.
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.
Origin
1935-1940
1935-40
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
Examples from the web for chi-square
  • The t-test and chi-square statistics are used to test statistical hypotheses about population parameters.
  • These two tests are chi-square distributed under large sample conditions.
chi-square in Medicine

chi-square 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.
Cite This Source
chi-square in Science
chi-square
  (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 © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for chi-square

Few English speakers likely know this word

Word Value for chi

8
8
Scrabble Words With Friends

Quotes with chi-square

Nearby words for chi-square