Range-Box Plotting Relating to Discrete Distribution


  • Mohd Bakri Adam Universiti Putra Malaysia
  • Babaginda Ibrahim Babura Department of Mathematics, Federal University Dutse
  • Kathiresan Gopal Institute for Mathematical Research, Universiti Putra Malaysia 43400 UPM Serdang, Malaysia




The box plot has been used for a very long time since 70s in checking the existence of outliers and the asymmetrical shape of data. The existing box plot is constructed using ve values of statistics calculated from either the discrete or continous data. Many improvement of box plots have deviated from the elegant and simplier approach of exploratory data analysis by incorporating many other statistic values resulting the turning back of the noble philosophy behind the creation of box plot.The modication using range value with the minimum and maximum values are being incorporated to suit the need of selected discrete distribution when outliers is not an important criteria anymore. The new modication of box plot is not based on the asymmetrical shape of distribution but more on the spread of the data and partitioning data into range measure. The new propose name for the box plot with only three values of statistics is called range-box plot.