Research ArticleOpen AccessGoogle Scholar indexed
Study on the Normal and Skewed Distribution of Isometric Grouping
School of Economics and Management Chongqing Three Gorges University Chongqing, China
Students Affairs DepartmentChongqing Three Gorges University Chongqing, China
- 1 School of Economics and Management Chongqing Three Gorges University Chongqing, China
- 2 Students Affairs DepartmentChongqing Three Gorges University Chongqing, China
Open Journal of Statistics·Volume 02 (2012)·Pages 447–451·Published 30 October 2012·DOI10.4236/ojs.2012.24056
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Abstract
Because of thinking only the number of numbers but not fitting function, it would be adequate to take further afield when calculating group numbers with empirical formula. We have proved the three theorems based on studying the normal distribution, and then reach the conclusion that there is a better method to do the same work. The method is simpler and more practical than empirical method and also works well with any skewed distribution.
KeywordsMean ValueVarianceFit FunctionRangeOne-Quarter Range
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