CS109: Probability for Computer Scientists
Autumn 2018
Monday, Wednesday, Friday 1:30pm to 2:50pm in 420-040

RESOURCES

Schedule
Staff / Office Hours
icon Piazza
Course Reader
Gradescope

PROBLEM SETS

Problem Set 1
Problem Set 2
Problem Set 3

EXAMS

Midterm
Tuesday, Oct 30th
7-9pm
T.B.D.

Final
Wednesday, Dec 12th
3:30-6:30pm
T.B.D.


Teaching Team

cs109@cs.stanford.edu

Professor

Chris Piech
piech@cs.stanford.edu
Gates 202
Thursday 1:30-3:30pm

Problem Set 3
2018101518

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

Galton Board
2018101518

A Galton board is a physical Binomial distribution where the bucket index that a ball falls into R ~ Bin(n,p) where n is the number of levels and p is the probability of going right each time the ball hits a pin. Check out the JavaScript demo, and the cool video bellow:

Problem Set 2
2018100515

PSet #2 has been released! Calculate the updated belief of the locaiton of a cell phone and hypothesize the genetic relationship between bats and whether they carry Ebola.

VPTL Tutoring
2018100313

Stanford offers a free tutoring service for CS109 students called VPTL tutoring! It is ideal if you want to ask about a question/topic/problem in more detail than we have time for in OH. Book appointments here.

Join Gradescope
2018100214

For pset submission in CS109 we are using gradescope. The entry code is MK3EGN.

If you're new to Gradescope, you can join the class by going to https://gradescope.com/ and clicking the button in the top right marked "Sign Up for Free." Select "Student," then enter the entry code, your full name, email address, and 8 digit student id.

Once you have a Gradescope account, click "Enroll in Course" button on the bottom right and enter our course code.

If you have any questions, feel free to post on Piazza.

Sign up for Section!
2018092617

Please sign up for section by filling out this form:
https://goo.gl/forms/JntAP56m9xFXcIfx1.

Once a week you are going to meet in a small group section. We are going to find the best weekly time for everyone. Section sign ups will close on Saturday at 11:59pm. Preferences are not first come first serve.

Python tutorial friday
2018092617

There will be an optional Python tutorial Friday (Sept 28th) in Gates 104. Two of our wonderful TAs are hosting two separate sessions (both will cover the same material) one session is 10am - 11am the other is from 3pm - 4pm. Python is not required for CS109. However a few problems in the psets require coding and seeing as Python is the language of computer science for probability, its worth learning. We will post notes from the session.

PSet #1 is out
2018092615

PSet #1 has been released! It is due next Firday, Oct 5th at 1:00pm. Submission will be via gradescore. Further submission instructions will come out next week. Office hours will start tomorrow, and the office hour calendar will have times and locations.

You can optionally write up your problem sets using LaTex. See this intro to LaTex, and the LaTex code used to generate it. Though you may install LaTeX, it is often much easier to use an online LaTeX editor. A great option is: overleaf.com.

Welcome
2018092300

Welcome to CS109! We are looking forward to a fun quarter. Class starts Monday Sept 24th at 1:30pm in 420-040.

What is CS109?
2018092300

We put together some handouts to help you understand where we are going to go in CS109 and how we plan to get there.

The Administrivia handout has details on course logistics. Read this to get a sense for what CS109 is going to entail.

The Course Schedule page shows you the topics that we are going to cover in CS109 and the corresponding readings. We will also post materials from lecture on the schedule page.

The Staff / Office Hour page has contact information for TAs and the office hour calendar. Office hours will start this Thursday.