P(A | B) = P(AB)/P(B), P(B) ≠ 0.
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Summary
on) another event is a conditional probability. The probability of an event A given an event B is denoted P(A | B). The probability of both A and B occurring is the joint probability of A and B, denoted P(AB). <span>P(A | B) = P(AB)/P(B), P(B) ≠ 0. The multiplication rule for probabilities is P(AB) = P(A | B)P(B). The probability that A or B occurs, or both occur, is denoted by P(A or B). &#