# An approximate maximum likelihood estimator in a weighted exponential distribution

• Lee, Jang-Choon (Division of Computer Engineering, Taegu Science University) ;
• Lee, Chang-Soo (Department of Flight Operation, Kyungwoon University)
• Accepted : 2012.01.13
• Published : 2012.01.31

#### Abstract

We derive approximate maximum likelihood estimators of two parameters in a weighted exponential distribution, and derive the density function for the ratio Y=(X+Y) of two independent weighted exponential random variables X and Y, and then observe the skewness of the ratio density.

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