The final exam is next Thursday! You can find all the details, including a link to the final review session, on the final page. Make sure to study. YOU👏 ARE👏 GOING👏 TO👏 BE👏 AWESOME👏!
The final is 12:15p on Dec 9th in Hewlett 200 (same place as the midterm):

Problem Set #6 has been released. In this pset, implement two core machine learning algorithms and apply them to real world datasets. Explore ethics of your decisions. Hope you enjoy.

Problem Set #5 has been released! Explore Central Limit Theorem, p-values, and algorithmic analysis.

One of the joys of probability+programming is the ability to make something totally of your own creation. In CS109 this quarter we are hosting a Challenge where you can make anything you like using the concepts and tools we learn in class. See the Challenge handout for more details.

Everyone! All midterms have been fully graded. The median grade was an 95 out of 120 (amazing!), the mean was just above 93, and the standard deviation was an 14. We were particularly impressed with all of the clean and creative answers many problems on this midterm, which we thought was quite difficult. Great work, everyone! See the solutions.

Problem Set #4 has been released! Explore Biometric Keystrokes, Music Probabilities, Thompson Sampling and more.

The first midterm is next Tuesday. You can find all the details, including a link to the midterm review session, on the midterm page. Make sure to study. YOU👏 ARE👏 GOING👏 TO👏 BE👏 AWESOME👏!
The midterm is 7p on Oct 26th in Hewlett 200:

Problem Set #3 has been released! It uses real probability density functions from the IPCC Climate Change report and analyze a bloom filter (a probabilistic datastructure).

Problem Set #2 is released and is due in 10 days on Monday, Oct 11th at 1:00pm Pacific. Submission will be via Gradescope. Build a foundation of core probability theory.

Today is the first day of sections! You should have received an email yesterday with your section time and the name of the TA who will be leading section. You can find the list of all sections here Section Times. If you didn't receive an email, please contact cs109@cs.stanford.edu. Section is an key component of your learning — wahoo.

You can find section materials in the "Section" tab. Here is the link for Section 1. We will post solutions on the Friday after section!

Section is a core part of CS109. Sign up for section by filling out the Section Signup Form. It is also a chance for you to tell us about yourself!

For more info on section, visit the Section part of the course syllabus. We are going to find the best weekly time for everyone. Section signups will close on Saturday, Sept 26 at 11:59pm Pacific. Preferences are not first come first serve.

Problem Set #1 has been released! It is due next Friday, Oct 1 at 1:00pm Pacific. Practice your counting, and calculating probabilities in the context of equally likely outcomes.

Welcome to CS109! We are looking forward to a fun quarter. Class starts Monday, Sept 20th at 1:30pm PT in STLC 111. We are looking forward to a great quarter 🌱.