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AP Stats
chapter six
13 cards·by taimik29
disjoint/mutually exclusive
two outcomes cannot happen at the same time
independent
one outcome does not affect the next
Addition Rule
P(AUB)= P(A)+P(B)
addition rule only applies if...
Both events are disjoint
General addition rule
P(AUB)=P(A)+P(B)-P(A+B)
General addition rule applies....
if the events are disjoint or not
Multiplication Rule
P(AnB)=P(A)*P(B)
The multiplication rule applies if...
the events are independent
General Multiplication rule
P(AnB)=P(A)*P(BlA)
the general multiplication rule applies...
if events are independent or not
n
and, multiplication
U
or,additon
0 < P(A) < 1?
true. This is rule #1