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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. Oversampling and undersampling in data analysis - Wikipedia

    en.wikipedia.org/wiki/Oversampling_and_under...

    A variety of data re-sampling techniques are implemented in the imbalanced-learn package [1] compatible with the scikit-learn Python library. The re-sampling techniques are implemented in four different categories: undersampling the majority class, oversampling the minority class, combining over and under sampling, and ensembling sampling.

  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

    The heterogeneity variance is commonly denoted by τ², or the standard deviation (its square root) by τ. Heterogeneity is probably most readily interpretable in terms of τ, as this is the heterogeneity distribution's scale parameter, which is measured in the same units as the overall effect itself. [18]

  6. Creighton stuns Hunter Dickinson, top-ranked Kansas in ... - AOL

    www.aol.com/creighton-stuns-hunter-dickinson-top...

    Once again, Greg McDermott has knocked off the top-ranked team in the country. Creighton rolled over No. 1 Kansas 76-63 on Wednesday night at the CHI Center in Omaha in the Big 12-Big East Battle.

  7. Krispy Kreme is giving away free doughnuts by the dozen today

    www.aol.com/news/krispy-kreme-giving-free...

    Krispy Kreme’s free dozen offer is only valid on World Kindness Day, November 13, and is available to the first 500 customers who stop by a participating store.

  8. Georgia is being rocked by growing protests. Here’s what you ...

    www.aol.com/georgia-being-rocked-days-violent...

    Days of protests have rocked Georgia following the government’s controversial decision to delay the former Soviet country’s bid to join the European Union.

  9. Overdispersion - Wikipedia

    en.wikipedia.org/wiki/Overdispersion

    A common task in applied statistics is choosing a parametric model to fit a given set of empirical observations. This necessitates an assessment of the fit of the chosen model. It is usually possible to choose the model parameters in such a way that the theoretical population mean of the model is approximately equal to the sample mean .