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Pearson, Karl

By: Plamena Panayotova | Edited by: Paul Atkinson, Sara Delamont, Alexandru Cernat, Joseph W. Sakshaug & Richard A. Williams Published: 2020 | Length:   5 | DOI: |
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Karl Pearson (1857–1936) was an applied mathematician who played a key role in establishing the mathematical and conceptual basis of statistical data analysis in the late 19th century. His contributions to statistical methodology include the development, between 1895 and 1914, of a comprehensive system of frequency curves to define empirical and theoretical distributions, the working out of a universally applicable formula to measure the strength and direction of the linear relationship between continuous variables, and the mathematical formulisation of the concept of linear regression and the development of the mathematics of multiple regression analysis. In 1900, Pearson developed the χ2 goodness-of-fit test for comparing distributions of categorical data and, in 1904, the χ2 test of independence for testing the relationship between categorical variables. Between 1896 ...

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