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S5.4 - Conditional Probability, General Multiplication Rule
Conditional Probability and the General Multiplication Rule
5
Mathematics
Graduate
11/05/2013

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Term
Conditional probability, P(FlE)
Definition
The probability that event F occurs given event E has occurred
Term
Conditional probability rule
Definition
If E and F are any two events
P(FlE) = P(E and F)/P(E) = N(E and F)/N(E)
Term
General multiplication rule
Definition
The probability that two events E and F both occur
P(E and F) = P(E) x P(FlE)
Term
If small random samples are taken from large populations without replacement
Definition
It is reasonable to assume independence of the events if the sample size is less than 5% of the population size
Term
If two events E and F are independent, then P(FlE) =
Definition
P(F)
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