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Dice tally

Roll one die or two and watch the results pile up. The bar chart shows what's likely — and what's surprising.

Last roll

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Tally

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With one die, every number is equally likely (≈16.7% each).

What you're seeing

With one die, every face has the same chance — about 1 in 6, or roughly 16.7%. After many rolls, all six bars should be about the same height.

With two dice, the smallest sum is 2 (1+1) and the biggest is 12 (6+6). But there's only one way to roll a 2 or a 12, and six ways to roll a 7 (1+6, 2+5, 3+4, 4+3, 5+2, 6+1). So 7 is the most likely sum, by a lot.

Try this

Hit Auto-roll for a few seconds with two dice and watch the chart. The shape that emerges — tall in the middle, shorter at the ends — is a distribution. It shows up everywhere in math.

The Law of Large Numbers

A few rolls can look weird — you might roll five 7s in a row. But the more you roll, the closer the bars match the true probability. That's why casinos always win in the long run.