3.2 Conditional Probability & Multiplication Rule
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dependent
events that are not independent are dependent
conditional probability
the probability of an event occurring, given that another event has already occurred
the multiplication rule
the probability that two events A and B will occur in sequence is: P(A and B) = P(A) x P(B I A) if events are independent then the rule can be simplified to: P(A and B) = P(A) x P(B)
independent
two events are *independent* if the occurrence of one of the events does not affect that probability of the occurrence of the other event