P(B) is the probability that event B occurs, P(A') is the probability that event A does not occur,
P(A) is the probability that event A occurs, The Multiple Event Probability Calculator uses the following formulas: Results Multiple Event Probability Value (decimal) Value (percent) P(A) - P(A') - P(B) - P(B') - P(A ∩ B) - P(A ∪ B) - P(A | B) - P(B | A) - Probability Formulas Multiple Event Probability Calculator (A & B are independent events)