CRIM 320 Chapter Notes - Chapter 2: Normal Distribution, Continuous Or Discrete Variable, Kurtosis
21 Mar 2016
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This is a standard arrangement; every table must be clearly itled and, when presented in a series, labeled by number as well: frequency distribuion of nominal data consist of two columns. The irst column indicates which characterisic is being presented and contains that. Comparing distribuions categories of analysis: making comparisons between frequency distribuions is a procedure oten used to clarify results and add informaion. Proporions and percentages: for more general use, we need a method of standardizing frequency distribuions for size- a way to compare groups despite diferences in total frequencies. Two of the most popular and useful methods of standardizing for size and comparing distribuions are the proporion and the percentage: proporion compares the number of cases in a given category with the total size of the distribuion. We can convert any frequency into a proporion p by dividing the number of cases in any given category f by the total number of cases in the distribuion n:
