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Category Archives: Inequalities
Rio’s Inequality
Let and be two integrable realvalued random variables and let be the quantile function of . Then if is integrable over we have where is the amixing coefficient. Proof: Set and then since and note also that which implies that
Kolmogorov’s Maximal Inequality
Let be independent random variables with . Set . Then Proof: Let Notice that and
An inequality of the expectation
Let be i.i.d. r.vs with and . Then Proof: So