Introducing Outliers
An outlier is a number that is significantly smaller or significantly larger than the rest of the numbers in the data set. Devise a data set that has an outlier.
How is the mean, median, and mode affected in a data set when you introduce an outlier? Explain your reasoning.

Related External Resources 
Basketball Statistics
This lesson plan investigates changes in measures of center in a distribution of the heights of basketball players.
Submit your idea for an investigation to InterMath.
