Applying the Addition Rule for Probability
Statistics and Probability · Flashcards
STATISTICS AND PROBABILITY · FLASHCARDS
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QUESTION
State the Addition Rule formula for
P
(
A
or
B
)
P(A\text{ or }B)
P
(
A
or
B
)
in terms of
P
(
A
)
P(A)
P
(
A
)
,
P
(
B
)
P(B)
P
(
B
)
, and
P
(
A
and
B
)
P(A\text{ and }B)
P
(
A
and
B
)
.
QUESTION
What is
P
(
A
or
B
)
P(A\text{ or }B)
P
(
A
or
B
)
if events
A
A
A
and
B
B
B
are mutually exclusive?
QUESTION
What is the equivalent notation statement for
P
(
A
and
B
)
P(A\text{ and }B)
P
(
A
and
B
)
using the intersection symbol?
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ANSWER
P
(
A
∩
B
)
P(A\cap B)
P
(
A
∩
B
)
. Intersection symbol represents outcomes in both events.
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