Chebychev's Inequality


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Chebychev's Inequality - short version

For every number k>0, the fraction of elements in a list that are k sd's or further from the arithmetic mean of the list is at most 1/k2. For random variables: for every number k>0, the probability that a random variable x is k ses or further from its expected value is at most 1/k2.



 



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