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On characterizations of the geometric distribution by independence of functions of order statistics

Published online by Cambridge University Press:  14 July 2016

R. C. Srivastava*
Affiliation:
The Ohio State University
*
Postal address: Department of Statistics The Ohio State University, 113 Cockins Hall, 1958 Neil Avenue, Columbus, OH 43210–1247, USA.

Abstract

Let X1, · ··, Xn, n ≧ 2 be i.i.d. random variables having a geometric distribution, and let Y1Y2 ≦ · ·· ≦ Yn denote the corresponding order statistics. Define Rn = Yn – Y1 and Zn = Σj=2nj – Y1). Then it is well known that (i) Y, and Rn are independent and (ii) Y1 and Zn are independent. In this paper, we show that a very weak form of each of these independence properties is a characterizing property of the geometric distribution in the class of discrete distributions.

Type
Short Communications
Copyright
Copyright © Applied Probability Trust 1986 

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References

Arnold, B. C. (1980) Two characterizations of the geometric distribution. J. Appl. Prob. 17, 570573.CrossRefGoogle Scholar
El-Neweihi, E. and Govindarajulu, A. (1979) Characterizations of geometric distribution and discrete IFR(DFR) distributions using order statistics. J. Statist. Planning Inf. 3, 8590.CrossRefGoogle Scholar
Ferguson, T. S. (1965) A characterization of the geometric distribution. Amer. Math. Monthly 62, 256260.CrossRefGoogle Scholar
Ferguson, T. S. (1967) On characterizing distributions by properties of order statistics. Sankhya A 29, 265278.Google Scholar
Galambos, J. (1975) Characterizations of probability distributions by properties of order statistics II. In Statistical Distributions in Scientific Work , Vol. 3, ed. Patil, G. P., Kotz, S. and Ord, J. K., Reidel, Dordrecht, 89101.Google Scholar
Govindarajulu, Z. (1980) Characterization of the geometric distribution using properties of order statistics. J. Statist. Planning Inf. 4, 237247.CrossRefGoogle Scholar
Shanbhag, D. N. (1977) An extension of the Rao-Rubin characterization of the Poisson distribution. J. Appl. Prob. 14, 640646.CrossRefGoogle Scholar
Srivastava, R. C. (1974) Two characterizations of the geometric distribution. J. Amer. Statist. Assoc. 69, 267269.CrossRefGoogle Scholar
Srivastava, R. C. (1981) On some characterizations of the geometric distribution. In Statistical Distributions in Scientific Work , Vol. 4, ed. Patil Chales Taille, G. P. and Baldessari, B. A., Reidel, Dordrecht, 349355.CrossRefGoogle Scholar