# American Institute of Mathematical Sciences

2006, 3(2): 385-387. doi: 10.3934/mbe.2006.3.385

## Remark on the Paper by Rao And Kakehashi (2005)

 1 Department of Statistics, University of Nebraska, Lincoln, Nebraska 68583, United States

Received  January 2006 Revised  January 2006 Published  February 2006

The paper by Rao and Kakehashi [1] uses the Weibull distribution (given by equation (3) in the paper) and a truncated version of it (given by equations (4) and (5)) to model HIV/AIDS data in India. After a careful reading, I have found that all of the results presented in the appendix are incorrect (starting with equation (11) itself). Instead of pointing out all of the specific errors, I have chosen to give the correct formulas (and a brief outline of their derivation) for the $r$th moment of the truncated Weibull distribution.
Citation: Saralees Nadarajah. Remark on the Paper by Rao And Kakehashi (2005). Mathematical Biosciences & Engineering, 2006, 3 (2) : 385-387. doi: 10.3934/mbe.2006.3.385
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