Single and Compound Probability
ISEE Upper Level · Flashcards · Recall
ISEE UPPER LEVEL · FLASHCARDS
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QUESTION
What is the addition rule for mutually exclusive events
A
A
A
and
B
B
B
?
QUESTION
What is the complement rule for an event
A
A
A
in probability notation?
QUESTION
What is the general addition rule for any events
A
A
A
and
B
B
B
?
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ANSWER
P
(
A
∪
B
)
=
P
(
A
)
+
P
(
B
)
−
P
(
A
∩
B
)
P(A\cup B)=P(A)+P(B)-P(A\cap B)
P
(
A
∪
B
)
=
P
(
A
)
+
P
(
B
)
−
P
(
A
∩
B
)
. Accounts for overlap by subtracting the intersection probability from the sum of individual probabilities.
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