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In statistics, deviance is a goodness-of-fit statistic for a statistical model; it is often used for statistical hypothesis testing. It is a generalization of the idea of using the sum of squares of residuals (SSR) in ordinary least squares to cases where model-fitting is achieved by maximum likelihood .
Absolute deviation in statistics is a metric that measures the overall difference between individual data points and a central value, typically the mean or median of a dataset. It is determined by taking the absolute value of the difference between each data point and the central value and then averaging these absolute differences. [ 4 ]
Deviance (statistics), a quality of fit statistic for a model; Positive deviance, an approach to behavioral and social change; Sexual deviance (historical term) or paraphilia, recurring or intense sexual arousal to atypical things; Deviance or bid'ah, innovations and deviant acts or groups from orthodox Islamic law (Sharia)
It is remarkable that the sum of squares of the residuals and the sample mean can be shown to be independent of each other, using, e.g. Basu's theorem.That fact, and the normal and chi-squared distributions given above form the basis of calculations involving the t-statistic:
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In statistics, the median absolute deviation (MAD) is a robust measure of the variability of a univariate sample of quantitative data.It can also refer to the population parameter that is estimated by the MAD calculated from a sample.
Degrees of freedom (statistics) Deviance (statistics), another measure of the quality of fit; Fisher's exact test; G-test, test to which chi-squared test is an approximation; Lexis ratio, earlier statistic, replaced by chi-squared; Mann–Whitney U test; Median test; Minimum chi-square estimation; Reduced chi-squared statistic
Deviance (sociology), a behavior that is a recognized violation of social norms; Deviation (1971 film), a horror film; Deviation, a short film; Deviation, a 2012 British thriller film starring Danny Dyer; Deviation (law) is a departure from a contract or a ship's course, thus breaching the contract