Characterizing Exponential Distributions via Conditional Independence
Abstract
Let Y1,...,Yn be n mutually independent, nonnegative random variables such that for each i=1,...,n,Yi has an absolutely continuous distribution function function F(x;0i) = F(0xi), where 0i>O, and F(.) has support O,oo). We show that given Yi - Yi+1>O for all i+1,...,n-1, the necessary and sufficient condition for the random variables Y1 - Y2,...,Yn-1-Yn and Yn to be conditionally mutually independent is that for each i+1,...,n,Yi has an exponential distribution. Characterization; Exponential distribution; Conditional independence.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1990
- Accession Number
- ADA219255
Entities
People
- Tachen Liang
Organizations
- Purdue University