Hostname: page-component-78c5997874-t5tsf Total loading time: 0 Render date: 2024-11-13T00:41:34.895Z Has data issue: false hasContentIssue false

A Note on Conditioning and Stochastic Domination for Order Statistics

Published online by Cambridge University Press:  14 July 2016

Devdatt Dubhashi*
Affiliation:
Chalmers University of Technology
Olle Häggström*
Affiliation:
Chalmers University of Technology
*
Postal address: Department of Computing Science, Chalmers University of Technology, S-412 96 Göteborg, Sweden.
∗∗Postal address: Department of Mathematicical Statistics, Chalmers University of Technology, S-412 96 Göteborg, Sweden. Email address: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

For an order statistic (X1:n,…,Xn:n) of a collection of independent but not necessarily identically distributed random variables, and any i ∈ {1,…,n}, the conditional distribution of (Xi+1:n,…,Xn:n) given Xi:n > s is shown to be stochastically increasing in s. This answers a question by Hu and Xie (2006).

Type
Research Article
Copyright
Copyright © Applied Probability Trust 2008 

Footnotes

Supported by the Swedish Research Council and by the G-ran Gustafsson Foundation for Research in the Natural Sciences and Medicine.

References

[1] Boland, P. J., Hollander, M., Joag-Dev, K. and Kochar, S. (1996). Bivariate dependence properties of order statistics. J. Multivariate Anal. 56, 7589.Google Scholar
[2] Efron, B. (1965). Increasing properties of Pólya frequency functions. Ann. Math. Statist. 36, 272279.Google Scholar
[3] Häggström, O. (2007). Problem solving is often a matter of cooking up an appropriate Markov chain. Scand. J. Statist. 34, 768780.Google Scholar
[4] Harris, T. E. (1960). Lower bound for the critical probability in a certain percolation process. Proc. Camb. Philos. Soc. 56, 1320.Google Scholar
[5] Hu, T. and Xie, C. (2006). Negative dependence in the balls and bins experiment with applications to order statistics. J. Multivariate Anal. 97, 13421354.Google Scholar
[6] Lindvall, T. (1992). Lectures on the Coupling Method. John Wiley, New York.Google Scholar
[7] Newton, I. (1707). Arithmetica Universalis: Sive de Compositione et Resolutione Arithmetica Liber.Google Scholar
[8] Strassen, V. (1965). The existence of probability measures with given marginals. Ann. Math. Statist. 36, 423439.Google Scholar