Probability is the mathematics of chance — putting a number between 0 and 1 on how likely something is to happen. From a single coin flip it grows into the tools that power risk, genetics, insurance and machine learning.

This course starts by measuring the chance of one event, then learns to combine events (and / or), and finally to reason with diagrams and with information you already know.

Stage 1 — Measuring chance

1. Probability Basics
2. Equally Likely Outcomes
3. Experimental Probability

Stage 2 — Combining events

1. Sample Spaces
2. Mutually Exclusive Events
3. Independent Events

Stage 3 — Diagrams & conditioning

1. Tree Diagrams
2. Venn Diagrams
3. Conditional Probability

Let's get started

We begin by pinning chance to a number on the 0-to-1 scale.

Let's get started → Probability Basics