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Exploratory data analysis

page 1
John Tukey
American mathematician (1915-2000)
stemplot
plot where the ones digit is separated from the other digits, showing the distribution of the ones digit
exploratory data analysis
approach of analyzing data sets in statistics
trimean
In statistics the trimean (TM), or '''Tukey's trimean''', is a measure of a probability distribution's central tendency defined as a weighted average of the distribution's quartiles: