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Equivalent groups typically are formed by.
P(B)
The probability of event B occurring in a statistical experiment.
Independent Events
Two events that have no influence on each other's occurrence, meaning the probability of one does not affect the other.
P(A And B)
The probability that events A and B both occur, which can be calculated directly or via the multiplication rule for independent events.
P(B|A)
The likelihood of event B happening after event A has already taken place.
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