Counterexamples to the classical central limit theorem for triplewise independent random variables having a common arbitrary margin

We present a general methodology to construct triplewise independent sequences of random variables having a common but arbitrary marginal distribution (satisfying very mild conditions). For two specific sequences, we obtain in closed form the asymptotic distribution of the sample mean. It is (and de...

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Veröffentlicht in:Dependence modeling 2021-12, Vol.9 (1), p.424-438
Hauptverfasser: Beaulieu, Guillaume Boglioni, de Micheaux, Pierre Lafaye, Ouimet, Frédéric
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Sprache:eng
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Zusammenfassung:We present a general methodology to construct triplewise independent sequences of random variables having a common but arbitrary marginal distribution (satisfying very mild conditions). For two specific sequences, we obtain in closed form the asymptotic distribution of the sample mean. It is (and depends on the specific choice of ). This allows us to illustrate the extent of the ‘failure’ of the classical central limit theorem (CLT) under triplewise independence. Our methodology is simple and can also be used to create, for any integer , new -tuplewise independent sequences that are not mutually independent. For [four.tf], it appears that the sequences created using our methodology verify a CLT, and we explain heuristically why this is the case.
ISSN:2300-2298
2300-2298
DOI:10.1515/demo-2021-0120