Students learn how to plot a cumulative frequency graph from a grouped data table.

Later, as learning progresses students use a cumulative frequency graph to compare distributions.

**Differentiated Learning Objectives**

- All students should be able to plot a cumulative frequency graph from a grouped data table.
- Most students should be able to plot and interpret the median and IQR from a cumulative frequency graph.
- Some students should be able to plot and interpret a cumulative frequency to compare multiple data sets.