Mean, Median, and Midrange: Effect of Outliers

Use the applet below to make a conjecture of the effect of outliers on the mean, median, and midrange of a data set. Drag the RED point and examine how the mean, the median, and the midrange are related. Compare when red point is an outlier. What are the mean, the median, and the midrange of this set of observations? Do all three of these values accurately capture the “center” of the distribution? Click on the NEW DATA SET button to explore a new data set.