Study on the Statistic Mechanics of Statistical Average and Its Application

The statistical average is one of the most extensive and important summary measures about social-economic analysis.It almost runs though any part of statistical theory.The statistical average has extremely extensive function in theoretical study of statistics and its application areas.This article conducts a systematic(research) to the statistical average,and explores the intrinsic connections between varies statistical average,(especially) gives the detailed explanation from each type about the statistical average,and uses concrete examples to study the applications and misuses of the statistical average.This article puts forward some referable principle for how to apply the statistical average correctly.