Stats 117: Introduction to Probability

John Duchi, Stanford University, Autumn 2026

Exercises

We will draw the majority of our exercises from the course textbook. We will also include a few of our own home-brewed exercises, which we will include in the pdfs linked below. Assignments should be submitted to Gradescope by the deadline.

We will not accept late homework for any reason. We post solutions soon after the deadline to allow students to evaluate their answers and check their mistakes, as timely feedback that shows specific errors is strongly associated with better learning outcomes (see, e.g., this comment). We will, however, drop the lowest scoring homework from your final grade.

Due Date Solutions
Problem Set 1 Tue, September 22
Problem Set 2 Tue, September 29
Problem Set 3 Tue, October 6
Problem Set 4 Tue, October 13
Problem Set 5 Tue, October 20
Problem Set 6 Tue, October 27
Problem Set 7 Tue, November 3
Problem Set 8 Tue, November 10
Problem Set 9 Tue, November 17
Problem Set 10 Tue, December 1