Pafnuty Chebyshev (source code)

= Pafnuty Chebyshev
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<Pafnuty Chebyshev>'s 1867 paper “Des valeurs moyennes” develops bounds for deviations of sums in terms of their <expected values> and <second moments>. This connects his historical work with the modern <Chebyshev's inequality> and its use in the <weak law of large numbers>. https://www.numdam.org/item/JMPA_1867_2_12__177_0.pdf[Chebyshev's original paper in French translation]{ref}.

\Image[https://upload.wikimedia.org/wikipedia/commons/8/82/Chebyshev.jpg]
{title=Historical portrait of <Pafnuty Chebyshev>}
{height=326}
{source=https://commons.wikimedia.org/wiki/File:Chebyshev.jpg}