Assistant Professor Statistics
	Pearce Hall 111 989-774-3543 coora1k@cmich.edu

Education

• Ph.D., University of Nevada at Las Vegas, 2008
• B.Sc., University of Colombo, Sri Lanka, 1994
  

Affiliations

American Statistical Association

Honors and Awards

• First Ph.D. graduate in mathematical sciences in the state of Nevada. Department of Mathematical Sciences, University of Nevada at Las Vegas, Summer 2008
• Wolzinger Family Research Scholarship - Science - Grad award. University of Nevada at Las Vegas, Spring 2008

Professional Interests

Modeling continuous statistical distributions and inferences, with applications to actuarial and medical sciences

Teaching Areas

Basic Statistics, Statistics for Engineers, Estimation Theory, and Mathematical Statistics

Recent Publications and Presentations

• Cooray, K. Generalized Gumbel distribution for modeling extreme value data. To appear in Journal of Applied Statistics.
• Cooray, K., Ananda, M. M. A. Survival data analysis with highly negative-skewed new families: The Gompertz-sinh family and its generalization. To appear in Journal of Applied Statistics.
• Cooray, K. (2009). The Weibull-Pareto composite family with applications to the analysis of unimodal failure rate data. Communications in Statistics—Theory and Methods, 38(11), 1901-1915.
• Cooray, K., Ananda, M. M. A. (2008). A generalization of the half-normal distribution with applications to lifetime data. Communications in Statistics—Theory and Methods, 37(9), 1323-1337.
• Cooray, K. (2006). Generalization of the Weibull distribution: the odd Weibull family. Statistical Modelling, 6(3), 265-277.
• Cooray, K., Gunasekera, S., Ananda, M. M. A. (2006). The folded logistic distribution. Communications in Statistics—Theory and Methods, 35(3), 385-393.
• Cooray, K. (2005). Analyzing lifetime data with long-tailed skewed distribution: the logistic-sinh family. Statistical Modelling, 5(4), 343-358.
• Cooray, K., Ananda, M. M. A. (2005). Modeling actuarial data with a composite lognormal-Pareto model. Scandinavian Actuarial Journal, 2005(5), 321-334.
• Ananda, M. M. A., Gunasekera, S., Cooray, K., Joint Statistical Meeting (JSM), "Folded parametric families," American Statistical Association, Denver, Colorado. (August 2008).
• Ananda, M. M. A., Cooray, K., Joint Statistical Meeting (JSM), "An alternative distribution to Weibull distribution that was overlooked in the literature," American Statistical Association, San Francisco. (August 2003).
• Cooray, K., Ananda, M. M. A., Joint Statistical Meeting (JSM), "Modeling insurance data with a composite lognormal-Pareto model," American Statistical Association, San Francisco. (August 2003).