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Chebyshev's inequality

British  
/ ˈtʃɛbɪˌʃɒfs /

noun

  1. statistics the fundamental theorem that the probability that a random variable differs from its mean by more than k standard deviations is less than or equal to 1/ k ²

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of Chebyshev's inequality

named after P. L. Chebyshev (1821–94), Russian mathematician

Example Sentences

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The critical distinction is that it is not a big deal to acquire a modest knowledge of variance, dispersion, sigma, nor Chebyshev’s Inequality.

From BusinessWeek