Statistical Probability Calculator

Calculate basic probability, complement, union and intersection of events from given outcomes.

Favourable Outcomes

Total Outcomes

P(A)

P(A) as %

P(A') Complement

Odds for A

P(A) — probability of A

P(B) — probability of B

P(A∩B) — both occur (0 if mutually exclusive)

P(A∪B)

P(A∪B) as %

P(A) — probability of A

P(B|A) — probability of B given A

P(A∩B)

As %

P(A) — prior probability

P(B|A) — likelihood

P(B|A') — false positive rate

P(A|B)

P(A|B) as %

P(B)

probability P(A) union intersection complement Bayes theorem statistics math events

🔗 Related Calculators