Checkpoint 4

Due Sunday, 11/08, 11:59 PM

I update this checkpoint after every class it covers.

• More than one commit in each week it covers. Not one push at the end with everything in it.
• You commit on your laptop and push. Uploading files on github.com does not count.
• Every commit message says what changed, such as add the bar chart. A single word such as update, fix, done or homework does not. Your agent may improve the wording, as long as it still says what you changed.

Last updated: Monday, 10/26/2026