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STAT 331Applied Linear Models

Units
0.50
Faculty
Mathematics
Subject
Statistics

When it runs

  1. F24
  2. W25
  3. S25
  4. F25
  5. W26
  6. S26
  7. F26
  8. W27
  9. S27

Ran in 7 of the last 7 terms. Winter 2027: scheduled, 3 lecture sections. Spring 2027: schedule not out yet.

Modelling the relationship between a response variable and several explanatory variables (an output-input system) via regression models. Least squares algorithm for estimation of parameters. Hypothesis testing and prediction. Model diagnostics and improvement. Algorithms for variable selection. Nonlinear regression and other methods.

Prerequisites

  • Complete all of the following
    • Must have completed at least 1 of the following:
      • MATH235 - Linear Algebra 2 for Honours Mathematics (0.50)
      • MATH245 - Linear Algebra 2 (Advanced Level) (0.50)
    • Complete 1 of the following
      • Must have completed the following:
        • STAT241 - Statistics (Advanced Level) (0.50)
      • Earned a minimum grade of 70% in each of the following:
        • SYDE212 - Probability, Statistics, and Data Science (0.50)
      • Earned a minimum grade of 60% in each of the following:

Antirequisites

  • Not completed nor concurrently enrolled in any of the following:
    • AFM323 - Quantitative Foundations for Finance (0.50)
    • ECON421 - Econometric Theory (0.50)
    • STAT321 - Regression and Forecasting (Non-Specialist Level) (0.50)
    • STAT371 - Applied Linear Models and Process Improvement for Business (0.50)
    • STAT373 - Regression and Forecasting Methods in Finance (0.50)
    • STAT374 - Quantitative Foundations for Finance (0.50)
    • SYDE334 - Applied Statistics (0.50)

Leads to

Fall 2026 sections

Enrolment from UW Open Data, which can trail Quest by up to two days. Instructors and rooms: Schedule of Classes.
SectionClassEnrolledMeets
LEC 0016019118 / 150TTh 10:00–11:20
LEC 002656364 / 110TTh 08:30–09:50
TUT 1016623182 / 260F 14:30–15:20

Winter 2027 sections

Enrolment from UW Open Data, which can trail Quest by up to two days. Instructors and rooms: Schedule of Classes.
SectionClassEnrolledMeets
LEC 00155890 / 125TTh 11:30–12:50
LEC 00260350 / 125TTh 14:30–15:50
LEC 7012221115 / 9999Online or by arrangement
TUT 10175850 / 250Jan 18 12:30–13:20
Feb 1 12:30–13:20
Feb 15 12:30–13:20
Mar 1 12:30–13:20
Mar 15 12:30–13:20
Mar 29 12:30–13:20
Apr 12 12:30–13:20

Resources

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Reviewed on UW Flow

73% liked it58% easy84% useful

From 177 ratings and 46 comments on UW Flow. The most helpful comments, quoted as written, without names. Read them all on UW Flow.

  • Knowledgeable prof, however the course was a bit disorganized at times. The in-class quizzes had a bunch of trick questions with the sole purpose of lowering the class average. Piazza was also a ghost town.

    Jun 2024 · liked it · 1 found this helpfulOn UW FlowRemove this

  • Although most of the content was covered thoroughly, I felt like Leilei's teaching style was very straightforward and dry. Most of the lecture time was taken by writing up notes, without much discussion. Although she gave good examples in R, there wasn't much interaction/discussion.
    A complaint I had was that there wasn't enough practice material given to us, we were expected to do questions from the textbook for practice towards the midterm and final. As expected, the final was pretty tough even with a cheatsheet. Overall, the course content isn't hard to grasp, but the graded work was painful.

    Apr 2023 · didn’t like it · 1 found this helpfulOn UW FlowRemove this

  • A very useful course of applying linear models. Mostly focuses on applying linear model on actual and simulated data. You would have assignments that ask you to simulate random data or analyze actual data using R. Make sure you know how to derive distributions of coefficient estimators too since they are very likely to be asked about on the exams. The last few weeks gives some brief introductions to more advanced materials like Lasso and Ridge regression, regression diagnostics etc. which are not tested if you are taking with Professor McGee since they would be taught in more details in later courses like STAT 431, STAT 437, etc.

    Dec 2022 · liked it · 1 found this helpfulOn UW FlowRemove this

  • Decent course, fair final.

    Aug 2026 · liked itOn UW FlowRemove this

  • get comfortable with matrices and the MVN stuff and the rest of the course will be fine. study the notes well, because you won't have very many practice problems that correlate to how you'll be tested. if you known the concepts well tho, it'll be easy

    Apr 2026 · liked itOn UW FlowRemove this

Discussed on r/uwaterloo

606 posts and comments in 445 threads mention STAT 331, January 2012 to December 2024. Quoted word for word, newest first; each reply sits under the post and the comment that started its branch. Search r/uwaterloo for newer posts.

Fall 2024

ECON 423 vs STAT 443 5 points, 2 comments

“Econ 423 - time series econometrics https://uwflow.com/course/econ423 Stat 443 - Forecasting https://uwflow.com/course/stat443 these two courses looks very similar, have anyone take these courses? …”

u/Agreeable-Air-5080: “My guess would be stat443 is harder and possibly more useful - but I haven’t taken these, although I plan on taking stat443. I’d recommend also looking into AFM423”

u/SheepherderOdd9017: “have you already took AFM423? I checked the comment on uwflow, they said this course doesnt have exam, instead it has 2 projects. the preq is stat331, will it be ok if i don't have any finance/accounting background?”

u/my_copingmechanism: “… so really depends on what you're more interested in - time series (ARMA, GARCH) or forecasting (an extension of stat331). …”

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Got below 60 in math 235 is that ok? 14 points, 6 comments

“I barely passed math235 is that ok for upper year math courses? Stressing”

u/amsyed10385: “… It is also important in some stat courses like STAT 331, linear models”

u/lurkinglo: “I can speak for stat 331 this term, we barely used 235 beyond very basic results. don’t know about other courses, but I would guess overall it depends on what major the OP picks. definitely no need to despair if it’s not their thing”

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Help with Honors Mathematics 1B and 2A term 9 points, 3 comments

“For preface, I am finishing my 1A term in mathematics, and want to end up working in data science eventually, (this is important). I am in sequence 4 so I will be studying in the summer. …”

u/Dinhbaon: “You can't take the stat communications course (ENGL 378) without stat 331, so take math 235 instead in your 2A. My courses were almost the same as yours except I did CS 136 in 1B and took math 235 in 2A”

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STAT 330, STAT 331, STAT 332 2 points, 5 comments

u/anonymouswombat26: “how feasible is it to do these courses in the same term? will the workload be too heavy or alright with other 2 courses being light electives?”

u/tried-n-tired: “I did STAT 331, STAT 332, and STAT 333 in one term (along with actsci 231 and a bird course) and I’m really not the strongest in math but passed them all, STAT 331/332 were not bad at all, so I think this is feasible especially with 2 light electives”

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Course advice 2 points, 5 comments

u/Crafty_Act1002: “Very confused about 3A stat courses. Stat330 Stat331 Stat332 Stat333 Stat340 Stat341 How many stat courses a term is doable. Also i hated stat230 but loved stat231. Thank u Also recommend any other courses i can take pls pls CO or CS or any other”

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Spring 2024

Check it elsewhere for Fall 2026

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