Faculty of Arts & Science · St. George
STA257H1
Probability and Statistics I
What was the average?
B-
2.7 GPA across 3 observed terms. Most recent: Fall 2025.
How is it graded?
Not yet verified
No syllabus we can lawfully use has been verified for this course.
How confident is this?
Med
A small number of terms, so read it as a range.
From the calendar
Official source · Faculty of Arts & ScienceA mathematically rigorous introduction to probability, with applications chosen to introduce concepts of statistical inference. Probability and expectation, discrete and continuous random variables and vectors, distribution and density functions, the law of large numbers. The binomial, geometric, Poisson, and normal distributions. The Central Limit Theorem. (Note: STA257H1 does not count as a distribution requirement course).
- Exclusions
- ECO227Y1ECO227Y5MAT370H1MAT377H1STA201H1STA237H1STA247H1STA256H5STAB52H3
- Contact hours
- 36 lecture · 12 tutorial
- Total scheduled hours for the course, not per week.
What people actually got
Last observed Fall 20253 terms 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.
Per-term figures stay hidden until each term clears five contributors. 3 observations can support one honest number; they cannot support 3.
How well we know this course
2022–2023Pyko’s archive holds 4 documents for STA257H1, across 2 years between 2022 and 2023.
- 3
- Final exams
- 1
- Solution sets
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 3 terms | Student contributions, consented | 2026-07-25 | user contributed aggregate |
| 4 archived documents, 2022-2023 | 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 A claim whose source moves is withdrawn before it goes stale.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
100 courses list STA257H1 as a prerequisiteShowing 24 of the 56 that have a page here. The other 44 have no page yet. Listing a course here means it names STA257H1 among its prerequisites — often as one of several ways to satisfy the same requirement, so this is what STA257H1 makes available, not what it alone guarantees.
Around this course
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