This chapter covers distribution functions. Section “Probability Distribution Functions” provides an overview of probability functions and introduces the reader to some relevant definitions and concepts. The last section, on continuous distribution functions, introduces the reader to some of the commonly used distribution functions in parametric statistics such as the normal, chi-squared, *t*, and *F* distributions.

**Probability Distribution Functions**

Probability distributions use charts, equations, or tables to represent the distribution of data. Net worth in the United States can be presented using all the three methods. For example, the U.S. Census provides the following tabular information on the distribution of ...

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