STA 4321

4/5

Introduction to Probability

3 credits

Offered: Fall & Spring

Statistics

Calculus-based probability theory: random variables, distributions, expectation, and limit theorems. Required for the statistics-heavy Data Science path and quant roles.

Typical workload: ~10 hrs/week outside class

Do not delay. UF lists this in critical tracking for 1 major, and 13 courses sit downstream of it in the prerequisite graph. Pushing it back can push back everything behind it.

Why students take this

From UF's official model plans and critical tracking, aggregated by TrackPilot.

Scheduled in 1 of 81 UF model plans, usually in semester 5 (junior year) and part of critical tracking for 1 major.

Data Science

Prerequisites

Chain shows catalog-listed prerequisite courses.

MAC 2311MAC 2312MAC 2313STA 4321

You need MAC 2313 or MAC 3474 first.

What it unlocks

13 courses list this as a prerequisite (directly or downstream).

MAP 4102 · Probability Theory and Stochastic Processes 2

STA 4210 · Regression Analysis

STA 4322 · Introduction to Statistics Theory

STA 4853 · Introduction to Time Series and Forecasting

Student reviews

Verified peer content — written by UF-email accounts, shown under pseudonyms. Open the STA4321 discussion.

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Career relevance

Quant trading interviews lean heavily on this material.

Critical for: Data Scientist

Critical for: Quantitative Trading / Development

Fall 2026 sections

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Live from ONE.UF (seat counts are hidden for logged-out users, so waitlist totals show instead). Sections marked “Sample” are labeled demo data.

Registration risk

90 on waitlists now

Critical tracking for 1 majors

§1832Malay Ghosh

7 waitlisted

Collecting data — no snapshots yet

No materials data for this section yet. It is never counted as $0 in schedule totals.

§1840Changwoo Lee

32 waitlisted

Collecting data — no snapshots yet

No materials data for this section yet. It is never counted as $0 in schedule totals.

§5516Yuki Ohnishi

29 waitlisted

Collecting data — no snapshots yet

No materials data for this section yet. It is never counted as $0 in schedule totals.

§5520James Hobert

22 waitlisted

Collecting data — no snapshots yet

No materials data for this section yet. It is never counted as $0 in schedule totals.

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