Basic Probability
ISEE Middle Level · Flashcards · Recall
ISEE MIDDLE LEVEL · FLASHCARDS
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QUESTION
What is the general addition rule for any events
A
A
A
and
B
B
B
(not necessarily disjoint)?
QUESTION
What is the probability of an event that is impossible (has
0
0
0
favorable outcomes)?
QUESTION
If events
A
A
A
and
B
B
B
are mutually exclusive, what is
P
(
A
∩
B
)
P(A\cap B)
P
(
A
∩
B
)
?
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ANSWER
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. Mutually exclusive events cannot occur together, so their intersection has zero probability.
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