Statistics

Probability Calculator

Two modes in one: binomial probabilities for coin flips and dice, plus the classic rules for combining events A and B.

Binomial: P(X=k) = C(n,k) · p&supk; · (1−p)n−k. If A and B are independent, P(A&Bcap;B)=P(A)·P(B).

🎲 Dice & coins

Binomial probabilities for games and trials.

📈 Full distribution

See every outcome and its probability in a table.

🔖 Event rules

Union, intersection and complements for A and B.

⚡ Instant

Switch modes and recalculate without reloading.

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