http://www.stat.yale.edu/Courses/1997-98/101/boxplot.htm

A box plot is used to graph a numerical data set and show the middle, first quartile(25%), second quartile(75%), and also the highest and lowest values of the data set. The above box plots represent data from winning lottery ticket pay outs for three separate time periods, May 1975-March 1976, November 1976-September 1977, and December 1980-September 1981.

## No comments:

## Post a Comment