Chance Lab
Count an event’s outcomes, predict its probability, then run reproducible virtual experiments.
5–15 min 1 learner
How it works
- Mark every outcome in an event, enter its exact probability, and compare with 100 or 1,000 simulated trials.
- Read the explanation after each mission. Hints are always available.
- Choose any mission or resume a local checkpoint. Progress is practice history, not a certified grade.
Controls: Keyboard / tap / labeled controls
Follow this idea
This interactive experience runs in your browser. Records stay on this device and are not verified rankings or assessments.