Calculating Probability
ISEE Middle Level · Flashcards · Recall
ISEE MIDDLE LEVEL · FLASHCARDS
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QUESTION
What is the probability of an impossible event?
QUESTION
What is the probability of a certain event?
QUESTION
What is the multiplication rule for independent events
A
A
A
and
B
B
B
?
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ANSWER
P
(
A
∩
B
)
=
P
(
A
)
⋅
P
(
B
)
P(A\cap B)=P(A)\cdot P(B)
P
(
A
∩
B
)
=
P
(
A
)
⋅
P
(
B
)
. For independent events, the joint probability multiplies individual probabilities as one does not affect the other.
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