The testing of the goodness of fit of a data to a Poisson distribution through the Poissonness plot is an interesting way to obtain a visual standpoint of the issue. Based on a real data from the said distribution, the paper discusses how the plot can be used to detect the lack of fit of the...

The paper presents some extensions to the population pyramid, which is a graphical technique used by demographers to visualize the age and sex distribution of a given population. The extensions to the plot include the visualization- when age intervals are unequal and comparison of age specific...

The Poisson distribution, in general remains sensitive to small departure of frequencies especially at the right tail of the distribution. In many situations it may happen that the Generalized Poisson Distribution (GPD) or a compound distribution provides a closer fit to a frequency distribution...

Background: Acquired Immunodeficiency Syndrome (AIDS) is a complicated disease that can pass on from person to person and can damage the human body’s immune system. Thus, the victim remains susceptible to various other infections. Since appropriate cure for the disease is yet to be available...

Simulation from distributions is an important aspect of study in case of statistical software. In this study a comparison is made between the two software viz, Excel and R, using their ability to simulation from Poisson distribution. The accuracy of estimates of the parameter of the said...

Since the normal distribution is the gate keeper to several statistical procedures, so conformity of a given data set to its normality assumptions is often of concern to the statisticians. Numerous parametric and non-parametric tests are available for testing the goodness of fit, some commonly...

The Poisson distribution, in general remains sensitive to small departure of frequencies especially at the right tail of the distribution. In many situations it may happen that the Generalized Poisson Distribution (GPD) or a compound distribution provides a closer fit to a frequency distribution...

It has been quite a long time now that graphs are been drawn with the help of computers, as it is easier, accurate and less time consuming. Most of the statistical software packages, used these days, have different graphical techniques embedded in them. This presentation makes a comparative...