Exam 02 review

Author

Prof. Maria Tackett

Published

Apr 09, 2026

Announcements

  • HW 04 due Thursday, April 9 at 11:59pm

  • Next project milestone: Draft report due Friday, April 10 (before lab)

    • Peer feedback due April 11 at 11:59pm
  • Exam 02

    • In-class: April 14

    • Take-home: April 14 - 16

    • Content: February 19 (Model conditions & diagnostics) - Today (Data science ethics)

Exam 02 format

  • 50 points total

    • In-class: 36 points

    • Take-home: 15 points

  • In-class: 75 minutes during April 14 lecture

  • Take-home: due Thursday, April 16 at 12pm (noon)

  • Official university documentation or note from your academic dean required to excuse any part of the exam

Exam 02 content

Concepts from the first half of the semester continue to apply, but the exam will focus on new content since Exam 01.

Linear regression

  • Model conditions and diagnostics

  • Multicollinearity

  • Variable transformations

  • Maximum likelihood estimation

  • Properties of estimators

  • Model selection

  • Ridge regression

Logistic regression

  • Fitting and interpreting logistic model
  • Predicted probabilities and classes
  • ROC curve and AUC
  • Inference for logistic regression
  • Model selection

Data science ethics

Tips for studying

  • Rework derivations from assignments and lecture notes

  • Review in-class activities and assignments, asking “why” as you review your process and reasoning

  • Focus on understanding not memorization

  • Explain concepts / process to others

  • Ask questions in office hours

  • Review prepare readings

  • Review lecture recordings (available until start of in-class exam)

Resources

  • Prepare readings

  • Lecture notes, AEs, labs, homework

  • Lecture recordings available until start of the exam (link in course website menu)

  • HW and lab assignments

  • Exam 02 practice problems (link in menu of course website)

Application exercise