#reading-9-probability-concepts
The multiplication rule for probabilities is P(AB) = P(A | B)P(B).
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Summary 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).
P(A | B) = P(AB)/P(B), P(B) ≠ 0.
<span>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).
The addition rule for probabilities is P(A or B) = P(A) + P(B) − P(AB).
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