Bar Graphs and Standard Error

Learning outcomes

After working through this module you should be able to:

  • Determine whether a bar chart or scatter plot is the best type of graph for the data you have.
  • Construct a bar chart.
  • Add error bars to a bar chart using either the standard deviation or standard error.
  • Determine, which of the standard deviation or the standard error is a more appropriate measure to describe the variability in a particular circumstance.

Module contents

1: Beyond the scatterplot
2: Practice with quantitative and qualitative
3: How to make a bar chart
4: How to make a fancier bar chart
5: Info lost and found
6: Error bars
7: Practice with error bars
8: And another way: the standard error
9: The same graph both ways
10: Summary