Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsAnscombe Quartethttp://demonstrations.wolfram.com/AnscombeQuartet/]]>http://demonstrations.wolfram.com/AnscombeQuartet/Residual-Fit Spread Plothttp://demonstrations.wolfram.com/ResidualFitSpreadPlot/]]>http://demonstrations.wolfram.com/ResidualFitSpreadPlot/Correlation and Regression Explorerhttp://demonstrations.wolfram.com/CorrelationAndRegressionExplorer/]]>http://demonstrations.wolfram.com/CorrelationAndRegressionExplorer/