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Interactive applet that allows a student to plot points on a graph and see how an outlier affects the regression line of the data points.

Goes over collecting and organizing data into frequency tables, histograms, box and whisker plots, and stem-and-leaf plots. Also shows finding mean, median and mode. Many include videos!

Definition of outliers, and the quartiles. With example and their connections to histograms, scatterplots, least square fitting