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  2. Homogeneity and heterogeneity (statistics) - Wikipedia

    en.wikipedia.org/wiki/Homogeneity_and...

    In statistics, a sequence of random variables is homoscedastic (/ ˌ h oʊ m oʊ s k ə ˈ d æ s t ɪ k /) if all its random variables have the same finite variance; this is also known as homogeneity of variance. The complementary notion is called heteroscedasticity, also known as heterogeneity of variance.

  3. Overdispersion - Wikipedia

    en.wikipedia.org/wiki/Overdispersion

    In statistics, overdispersion is the presence of greater variability (statistical dispersion) in a data set than would be expected based on a given statistical model.. A common task in applied statistics is choosing a parametric model to fit a given set of empirical observations.

  4. Homoscedasticity and heteroscedasticity - Wikipedia

    en.wikipedia.org/wiki/Homoscedasticity_and...

    In statistics, a sequence of random variables is homoscedastic (/ ˌ h oʊ m oʊ s k ə ˈ d æ s t ɪ k /) if all its random variables have the same finite variance; this is also known as homogeneity of variance. The complementary notion is called heteroscedasticity, also known as heterogeneity of variance.

  5. Study heterogeneity - Wikipedia

    en.wikipedia.org/wiki/Study_heterogeneity

    Statistical testing for a non-zero heterogeneity variance is often done based on Cochran's Q [13] or related test procedures. This common procedure however is questionable for several reasons, namely, the low power of such tests [14] especially in the very common case of only few estimates being combined in the analysis, [15] [7] as well as the specification of homogeneity as the null ...

  6. Heterogeneity (statistics) - Wikipedia

    en.wikipedia.org/?title=Heterogeneity...

    Pages for logged out editors learn more. Contributions; Talk; Heterogeneity (statistics)

  7. Polymarket says mystery Trump bettor is French national

    www.aol.com/news/polymarket-says-mystery-trump...

    The mystery bettor on election gambling site Polymarket who made large bets on a Trump election victory is a French national who took a position based on a personal view of the presidential race ...

  8. Woman who pleaded guilty to 1990 'clown' murder ... - AOL

    www.aol.com/woman-pleaded-guilty-1990-clown...

    The woman who pleaded guilty to dressing as a clown and fatally shooting the wife of a man she later would marry has been released from prison, according to Florida Department of Corrections ...

  9. Simpson's paradox - Wikipedia

    en.wikipedia.org/wiki/Simpson's_paradox

    Simpson's paradox is a phenomenon in probability and statistics in which a trend appears in several groups of data but disappears or reverses when the groups are combined. This result is often encountered in social-science and medical-science statistics, [ 1 ] [ 2 ] [ 3 ] and is particularly problematic when frequency data are unduly given ...