The five-number summary is a descriptive statistic that provides information about a set of observations. It consists of the five most important sample percentiles: In order for these statistics to exist the observations must be from a univariate variable that can be measured on an ordinal, interval or ratio scale. ==Use and representation== The f...
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http://en.wikipedia.org/wiki/Five-number_summary
(from the article `statistics`) Exploratory data analysis provides a variety of tools for quickly summarizing and gaining insight about a set of data. Two such methods are the ...
Found on
http://www.britannica.com/eb/a-z/f/32
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