stats equations
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7 Terms
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the event that A and B both occur can be written as
A n B
2
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the event that A or B occur can be written as
A u B
3
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the event that A does not occur can be written as
A’ (the complement of A)
4
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the probability that event A occurs given that event B has already occurred
P(A | B)
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if A and B are independent then
P(A | B) = P(A)
6
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to solve conditional probabilities
P(A|B)= P(A n B) divided by P(B)
7
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intersection and union formula
P(A u B) = P(A) + P(B) - P(A n B)