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chi-square distribution

   Also found in: Dictionary/thesaurus, Medical, Legal, Financial, Wikipedia, Hutchinson 0.04 sec.
chi-square distribution [′kī ¦skwer dis·trə′byü·shən]
(statistics)
The distribution of the sum of the squares of a set of variables, each of which has a normal distribution and is expressed in standardized units.


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Statistical analyses of changes in the prevalence of limitations, chronic conditions, and demographic factors were performed using chi-square distribution tests.
Contribution of Chronic Conditions to Aggregate Changes in Old-Age ... by Childers, Chris / Physical Therapy
Appendix D: Percentiles of the Chi-Square Distribution.
Health and Numbers, Second Edition Strikes A Balance between ... by Business Wire
where [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] is the chi-square distribution on n-1 degrees of freedom, [s.
Use of the standard error as a reliability index of interest: an ... by Goldsmith, Charlie H. / Physical Therapy
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