Quiz #1: Thursday April 30th, 12:00AM-11:59PM PDT


Quiz #2: Thursday May 21st, 12:00AM-11:59PM PDT

Quiz Tagging Policy
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When you upload your submission PDF to Gradescope, you have the option of tagging your PDF, meaning that you assign pages of your PDF to particular questions. You must tag your PDF, so we can properly grade your submission. Besides, it's also a good check for yourself to make sure you submitted the right document! :-) For quizzes, we are deducting 2 points for any submissions that do not have questions tagged.


About Quizzes

Each quiz will be a 24-hour open book, open note exam. Quiz material will approximate about 2 hours of active work, and we give you 24 hours to work on each quiz to reduce time pressure and accommodate any difficulties accessing resources during your quiz time.

Unlike the problem sets, the take-home quizzes are strictly individual work. Even course staff assistance will be limited to clarifying questions of the kind that might be allowed on a traditional, in-person exam.

If you have questions during the exam, please ask them via our discussion forum. We will not be answering any exam questions during office hours on Thursday; furthermore, all TA office hours are cancelled on Thursday.

Section attendance: During quiz weeks, we will still have section that covers material for that week, but attendance is optional. More info in this discussion post.

Learning Goals

These quizzes are intended as checkpoints for yourself for how well you understand the concepts in this class. By giving you ample time to access course resources, we hope this experience will help you structure your learning for the rest of the quarter.

Honor Code Guidelines

The take-home exams are open-book (open lecture notes, handouts, textbooks, course lecture videos, and internet searches for conceptual information, e.g., Wikipedia). Consultation of other humans in any form or medium (e.g., communicating with classmates, asking questions on forum websites such as StackOverflow) is prohibited. All work done with the assistance of any external material in any way (other than provided CS109 course materials) must include citation (e.g., "Referred to Wikipedia page on DeMorgan's Law for Question 2."). Copying solutions is unacceptable, even with citation. If by chance you encounter solutions to the problem, navigate away from that page before you feel tempted to copy. If you become aware of any honor code violations by any student in the class, your commitments under the Stanford Honor Code obligate you to inform course staff. Because of the S/NC nature of this quarter, as well as the many opportunities available to you to make up this material with extra credit and contest work, please remember that there is no reason to violate your conscience to complete a take-home exam.

Submission

The exam will be posted on this webpage on midnight (Pacific time) the day of the exam. You will upload and submit your submission as a PDF to Gradescope. Just like we do for homework, we will provide a LaTeX template if you find it useful, but we will accept any legible submission.

The Quiz #1 Gradescope assignment portal will also be published on midnight (Pacific time) the day of the exam. You can submit multiple times, but we will only grade the last submission submitted by 11:59pm (Pacific time) the day of the exam.

No exam submissions will be accepted late. Please double-check that you submit the right file. Please tag your questions.

Quiz #1 Specifics

Material covered: Quiz #1 will cover all material through (and including) Week 3/Lecture 9 (continuous random variables).

Review session: Tim, one of our wonderful TAs for CS109 this quarter, will hold a review session on Tuesday, April 28th, 12-2pm Pacific Time. Zoom link here.

Practice material: Previous iterations of this course have had a single midterm which covered more material. To help you practice the concepts in Spring 2020, we have tagged the relevant questions for Quiz #1 (Spring 2020).

Essential Practice

Extra Practice

Review Materials

These review materials were put together by Alex Tsun, a CS109 TA. These materials cover more material than you are responsible for. You only need to learn what is in the lecture notes/slides through discrete joint distributions. In addition, these notes contain a discrete uniform distribution (which we did not learn) and a continuous uniform (which we did learn). Be careful not to mix these two up!

Review Session

Review session: Any materials used during the review session will be shared on this page afterwards.

Quiz #2 Specifics

Material covered: Quiz #2 will cover all material through (and including) Lecture 17 (jointly continuous distributions).

Review session: Tim, one of our wonderful TAs for CS109 this quarter, will hold a review session on Saturday, May 16th, 12-2pm Pacific Time. Zoom link here.

Practice material: Previous iterations of this course have had a cumulative final. To help you practice the concepts in Spring 2020, we have tagged the relevant questions for Quiz #2 (Spring 2020).

Essential Practice

  • Practice midterm content: All questions in the complement of Quiz #1's questions
  • Practice Final [Soln] - Note that the practice exam is intended to be challenging!
    • Quiz #2 Practice: 1, 2, 3, 4, 6, 7
  • This Quarter's Quiz #1 [Soln]

Extra Practice

Review Materials

You can do it!

Credits: Wording for Honor Code Guidelines from CS103 Spring 2020, taught by Cynthia Bailey Lee and David Varodayan.