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chi-square distribution
(redirected from Chi-squared distribution)

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chi-square distribution [ˈkaɪˌskwɛə]
n
(Mathematics & Measurements / Statistics) Statistics a continuous single-parameter distribution derived as a special case of the gamma distribution and used esp to measure goodness of fit and to test hypotheses and obtain confidence intervals for the variance of a normally distributed variable
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A further indication of the importance of using a variable counting time scheme can be seen from the analysis of the cumulative chi-squared distribution for the refinement of the structure of famotidine (Figure 4).
Powder diffraction: least-squares and beyond by David, W.I.F. / Journal of Research of the National Institute of Standards and Technology
 
 
 
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