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Retailing on the Internet
Descriptive Statistics
Statistical methods that summarize and organize data collected from a sample or population, including measures such as mean, median, and standard deviation.
Numerical Indexes
Measures or indicators that are expressed as numbers, often used to compare and analyze data.
Mean
The arithmetic average of a set of values, calculated by summing the values and then dividing by the number of values.
Distribution
In statistics, the way in which values of a variable are spread or dispersed across a set of data.
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