ABSTRACT
The Statistical Method seeks to discover whatever regularity might subsist between two or more attributes, or two or more variables. The associations or correlations established by the Statistical Method, and the concomitant variations shown by the Method of Concomitant Variations, exhibit analogous types. Many of the results of the application of Statistical Methods are also very useful to the individual and to society. This is evident from the fact that the whole business of insurance rests on statistical calculations and processes. Life contingencies, or mortality tables, are an excellent help to insurance companies, even if they throw no light on the complex conditions which determine life and death. The association between two attributes is said to be positive if the presence of one is accompanied by the presence of the other; it is said to be negative if when one of them is present the other is absent.
