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chisquare

 - 3 dictionary results

chi-square

  [kahy-skwair]
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–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.
Origin:
1935–40
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Medical Dictionary

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.
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Science Dictionary
chi-square   (kī'skwâr')  Pronunciation Key 
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.
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