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Quiz 02

Quiz
Modified

October 21, 2026

Overview

Quiz 2 will be held on October 23rd. It will be a 30 minute in-person, timed quiz.

The quiz will cover all material through the end of week 8 (rectangling data). It will be framed as a mock technical interview. Students will be provided with data science-related tasks and (broken) source code. You will be responsible for troubleshooting and fixing the code to render the intended output.

You will be evaluated both on whether or not you accomplish the task, as well as your troubleshooting process and workflow. Things we encourage students to do during the interview:

  • Think out loud and describe your troubleshooting process
  • When explicit errors occur, utilize the traceback to identify the source of the problem
  • Utilize reference documentation
WarningNo external resources

We will provide you a copy of the reference sheet packet for the course. You will complete the interview using your computer, but you are not permitted to use generative AI tools or other resources on the internet. Use of such resources will result in a heavy deduction on your quiz grade.

Sign up for a time slot

Sign up for an interview time slot.

Interview protocol

Before the interview, students should:

  1. Clone their quiz-02 repo from GitHub.
  2. Run renv::restore() to install the required packages.

When you arrive for your interview, have Positron open and ready to go. The Quarto document for the quiz is stored as an encrypted file (quiz-02.qmd.secret). When you get into the room, run the R command

source("secret.R")

You will be prompted to decrypt the file. The TA will provide you with the passwork to decrypt the file. Enter it and the quiz file will be decrypted. You will then have 30 minutes to complete your interview.

When you are finished, render the Quarto document and submit the PDF to Gradescope. Your PDF submission must match what you completed during the interview.

Students with SDS accommodations

Students who have registered SDS accommodations related to timed assignments are implemented by the SDS Alternative Testing Program. You will receive separate instructions from SDS about how to take the quiz with your accommodations. If you have any questions about your accommodations, please contact SDS directly.

Students with religious or other accommodations

If you require an accommodation for quiz 02 on the basis of religious observances, athletics, military service, or another accommodation listed on the course syllabus, please contact us at soltoffbc@cornell.edu by October 20th. Any accommodation requests received after this date are unlikely to be approved.

Rules & Notes

Academic Integrity

  1. A student shall in no way misrepresent his or her work.
  2. A student shall in no way fraudulently or unfairly advance his or her academic position.
  3. A student shall refuse to be a party to another student’s failure to maintain academic integrity.
  4. A student shall not in any other manner violate the principle of academic integrity.

Source: Cornell University Code of Academic Integrity

  • This is an individual assignment. Everything in the quiz is for your eyes only.
  • The quiz will be held in-person. All responses will be written in a Quarto document, rendered to a PDF, and submitted via Gradescope immediately at the end of the quiz.
  • You may use reference documentation accessed through Positron and the course-provided reference sheets.
  • You may not use the internet or generative AI tools during the quiz.

Submission

  • All responses will be submitted via Gradescope.

Grading

Each quiz is weighted equally. There will be three quizzes in total, so each quiz is worth 10% of your final grade.