Bar Graph vs. Histogram

Lesson 4: Bar Graphs and Pie Charts

This lesson throws a couple new types of data visualization into the mix: bar graphs and pie charts. We’ll see why bar graphs are more useful than histograms for certain types of data, and we’ll explore why bar graphs are way, way better than pie charts.

Lab: Bar Graphs and Pie Charts

In this lab, we’ll take another look at the coffee data set from previous labs, examine some of the categorical data it contains, and explore the difference between categorical and numerical data. We’ll also add a couple more data visualizations to our toolbelt: pie charts and bar graphs.

The lab instructions can be downloaded as a PDF file here.

The data set for this lab can be viewed here. From the link, copy and paste all the data into a new worksheet in Excel Online.