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A conditional version of Chebyshev’s other inequality


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Abstract

Under the conditions of integrability the conditional version E(f(X)G)E(g(X)|G) ≤ E(f(X)g(X)|G) a.s. of Chebyshev’s other inequality is proved for monotonic functions f and g of the samemonotonicity, for any random variable X, and for any σ-algebra G. An improved conditional version of the Grüss inequality is also proved.

About the authors

N. Golikova

Faculty of Physics and Mathematics; Department of Statistics, Faculty of Computational Mathematics and Cybernetics

Author for correspondence.
Email: nina.golikova@mail.ru
Russian Federation, ul. Radio 10A, Moscow, 105005; Moscow, 119992

V. Kruglov

Faculty of Physics and Mathematics; Department of Statistics, Faculty of Computational Mathematics and Cybernetics

Email: nina.golikova@mail.ru
Russian Federation, ul. Radio 10A, Moscow, 105005; Moscow, 119992

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