Calculate basic probability, combined events, odds, and binomial probability.
Probability = favorable outcomes / total outcomes; combined events use multiplication (independent) or addition (mutually exclusive).
The probability of rolling a 6 on a fair die is 1/6 ≈ 0.167.
A number from 0 to 1 expressing how likely an event is, calculated as favorable outcomes divided by total possible outcomes.
Independent events multiply; mutually exclusive events add. The calculator applies the appropriate rule.
Odds express the ratio of favorable to unfavorable outcomes, different from probability.