For K-12 Students · Bootstrap
Bootstrap for a dice-fairness check
Built for k-12 students learning it in middle or high school. Watch the idea come alive with plain-language steps and everyday examples — perfect for projects and homework. Simulate a dice-fairness check live below — adjust the inputs and watch it respond, right in your browser.
Bootstrap ResamplingLive
confidence without formulas
Controls
Presets
The bootstrap estimates uncertainty by resampling your data with replacement thousands of times and recomputing the statistic each time. The spread of those bootstrap means gives a confidence interval — no formula or normality assumption required. Powerful when the math is intractable.
Data Inspector
Sample mean0.00
95% CI low0.00
95% CI high0.00
CI width0.00
Governing equation
Reading this result: The spread of the resampled means is the confidence interval — no normality assumption needed. Sample size sets its width; more resamples only sharpen its edges.
Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.
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Frequently asked questions
- Is this good for k-12 students?
- Yes — this version of "Bootstrap for a dice-fairness check" is framed for k-12 students learning it in middle or high school. Watch the idea come alive with plain-language steps and everyday examples — perfect for projects and homework.
- Do I need to install anything?
- No. It runs in any modern browser, free, with no account required.