Tuesday, November 22, 2011

Scatterplot

http://www.stat.yale.edu/Courses/1997-98/101/scatter.htm
A scatter plot is a tool to show correlation.  A set of data is plotted on the x-axis and another set of data is plotted on the y-axis.  The data may be independent or dependent, depending on the information that you are trying to communicate.  This plot shows a loose negative correlation; as X increases, Y decreases.

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