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  2. Weighted median - Wikipedia

    en.wikipedia.org/wiki/Weighted_median

    For simplicity, consider the set of numbers {,,,,} with each number having weights {,,,,} respectively. The median is 3 and the weighted median is the element corresponding to the weight 0.3, which is 4.

  3. Median income - Wikipedia

    en.wikipedia.org/wiki/Median_income

    Annual median equivalised disposable income per person, by OECD country. [2]The median equivalised disposable income is the median of the disposable income which is equivalised by dividing income by the square root of household size; the square root is used to acknowledge that people sharing accommodation benefit from pooling at least some of their living costs.

  4. John Tukey - Wikipedia

    en.wikipedia.org/wiki/John_Tukey

    John Wilder Tukey (/ ˈ t uː k i / [2]; June 16, 1915 – July 26, 2000) was an American mathematician and statistician, best known for the development of the fast Fourier Transform (FFT) algorithm and box plot. [3]

  5. Phonological history of Spanish coronal fricatives - Wikipedia

    en.wikipedia.org/wiki/Phonological_history_of...

    In Spanish dialectology, the realization of coronal fricatives is one of the most prominent features distinguishing various dialect regions. The main three realizations are the phonemic distinction between /θ/ and /s/ (distinción), the presence of only alveolar [] (), or, less commonly, the presence of only a denti-alveolar [] that is similar to /θ/ ().