Modified burr III distribution,properties and applications

Many researchers have attempted to develop appropriate data-friendly models to analyze statistical data. even new generalizations of models with numerous parameters are derived to handle complex data. the burr iii distribution has been widely used in forestry,reliability quality control,mechanical factors,life distributions,risk analysis,weather forecasting,consumer prices etc. lindsay et al. (1996),wingo (1993),wang et al. (1996) zimmer et al. (1998),watkins (1999),shao (2000 and 2004). in this paper,we propose a modification in burr iii (mb iii) distribution. the proposed distribution is more flexible and tractable than its parent burr type iii (b iii) distribution. some properties of the proposed distribution are derived. to illustrate its application we use fracture toughness data from the material alumina (al2o3) and compare with burr iii and its sub-model. © 2015 pakistan journal of statistics.