Interactive figures
Labs
Five first-class experiments that make the theorems tactile. Each lab is linked directly from the reading navigation and points back to the chapter whose idea it brings to life.
The die as a sample space
Click faces, build events, watch classical probability count itself.
The clinic
A rare disease, a sharp test, and a posterior that surprises almost everyone.
Binomial workshop
Vary n and p and see a counting argument become a shape.
Settling averages
Flip a coin until the running mean forgets how it started.
The bell and its area
Mean, spread, and the chance sitting between two fences.