Students learn how to interpret histograms with unequal class widths.

As learning progresses students are challenged to calculate the mean estimate from a histogram.

**Differentiated Learning Objectives**

- All students should be able to calculate the total frequency from a histogram with unequal class widths.
- Most students should be able to calculate an estimate of frequency within a given range for a histogram with unequal class widths.
- Some students should be able to estimate the mean average from a histogram with unequal class widths.