For Engineers · Dice Probability
Dice Probability for a confidence interval
Built for engineers using it for real design work. Go from concept to a running model in the browser, then scale to the cloud when needed. Simulate a confidence interval live below — adjust the inputs and watch it respond, right in your browser.
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the shape of chance
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Roll one die and every outcome is equally likely — a flat distribution. Roll several and sum them, and the shape becomes a bell: middle sums have many combinations, extremes have few. This is the central limit theorem in miniature, and why 7 is the most common roll of two dice and the heart of the game of craps.
Data Inspector
P(sum = target)16.67%
Most likely sum7
Combinations36
Governing equation
Reading this result: Your target sits right at the peak: sums near the mean of 7 have the most combinations while the extremes have just one each — the central limit theorem in miniature.
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 engineers?
- Yes — this version of "Dice Probability for a confidence interval" is framed for engineers using it for real design work. Go from concept to a running model in the browser, then scale to the cloud when needed.
- Do I need to install anything?
- No. It runs in any modern browser, free, with no account required.