Probability Laboratory
The Probability Laboratory is a set of interactive experiments for learning about randomness. Simulate hundreds of coin flips, roll multiple dice and see why previous results do not make an opposite result “due”.
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How to use Probability Laboratory
- Choose an experiment: coin flips, dice rolls or streak demonstration.
- Set the number of trials.
- Run the simulation and compare observed results with theoretical probabilities.
- Use the charts to visualise distributions and longest streaks.
Example uses
- Classroom probability lessons.
- Understanding why streaks happen.
- Explaining the gambler’s fallacy.
- Verifying that long-run frequencies approach theoretical values.
Fairness and probability
Simulations use the same Math.random() source as the games. Results are for education and entertainment, not for gambling or high-stakes decisions.
Frequently asked questions
Are the simulations truly random?
They use pseudo-random numbers suitable for education and games. They are not cryptographically secure.
Can I export the results?
Yes. Results can be copied as text or downloaded as a simple CSV for classroom use.
Accessibility
- Charts include text summaries and data tables.
- Results are announced by a live region.
- Reduced-motion mode disables animated charts.