Faculty of Arts & Science · St. George
STA255H1
Statistical Theory
What was the average?
C
2 GPA across 1 observed term. Most recent: Winter 2023.
How is it graded?
Not yet verified
No syllabus we can lawfully use has been verified for this course.
How confident is this?
Low
A small number of terms, so read it as a range. The most recent observation is several years old.
From the calendar
Official source · Faculty of Arts & ScienceThis courses deals with the mathematical aspects of some of the topics discussed in STA220H1. Topics include discrete and continuous probability distributions, conditional probability, expectation, sampling distributions, estimation and testing, the linear model (Note: STA255H1 does not count as a distribution requirement course).
- Exclusions
- ECO227Y1STA201H1STA237H1STA238H1STA247H1STA248H1STA256H5STA257H1STA260H5STA261H1STAB52H3STAB57H3
- Contact hours
- 36 lecture · 12 tutorial
- Total scheduled hours for the course, not per week.
One option from each line
STA220H1, STA221H1, STA288H1, ECO220Y1 and ECO220Y1, STAB22H3, STA220H5, or ECO220Y5
MAT133Y1, MAT135H1 and MAT136H1, MAT148H1 and MAT149H1, MAT137Y1, MAT158H1 and MAT159H1, MAT157Y1, MATA32H3 and MATA33H3, MATA29H3 and MATA35H3, MATA30H3 and MATA36H3, MATA31H3 and MATA37H3, MAT133Y5, MAT132H5 and MAT134H5, MAT135H5 and MAT136H5, MAT137Y5, MAT157Y5, MAT137H5 and MAT139H5, or MAT157H5 and MAT159H5
What people actually got
Last observed Winter 20231 term observed
This is a student-contributed aggregate, not an official University of Toronto record. It is also not a measure of how hard the course is — a course average moves with who enrols in it, not only with the material.
The newest observation is from Winter 2023. Instructors, weighting and exam format may all have changed since — treat this as history, not a forecast.
This rests on 1 reported term. It is shown because hiding it would not make it less true, but one or two results are a datapoint, not a distribution — a single unusual cohort moves this number a long way.
How well we know this course
2022–2024Pyko’s archive holds 3 documents for STA255H1, across 3 years between 2022 and 2024.
- 3
- Final exams
Counts, not a library. Pyko does not host or distribute course files, and this page is not an offer to supply one — the archive is what lets these pages describe how a course is assessed, which matters most where no syllabus has been verified.
What we don’t have yet
Source ledger
Report an error →| Claim | Source | Captured | Status |
|---|---|---|---|
| Course description, prerequisites, exclusions, contact hours | Faculty of Arts & Science | 2026-07-25 | public fact |
| Historical average across 1 term | Student contributions, consented | 2026-07-25 | user contributed aggregate |
| 3 archived documents, 2022-2024 | Pyko archive | 2026-07-25 | index only |
Page last verified 2026-07-25. A claim whose source moves is withdrawn before it goes stale.
What this opens up
31 courses list STA255H1 as a prerequisiteThe other 13 have no page yet. Listing a course here means it names STA255H1 among its prerequisites — often as one of several ways to satisfy the same requirement, so this is what STA255H1 makes available, not what it alone guarantees.
Around this course
You’ve read the average. Now use it.
Add STA255H1 and Pyko tracks what you've earned against your own grading scheme.
Pyko is an independent student platform. It is not affiliated with, endorsed by, or operated by the University of Toronto. Course names and codes are used descriptively to identify courses.