Probability
Quantitative Reasoning · Flashcards
QUANTITATIVE REASONING · FLASHCARDS
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QUESTION
What is the formula for probability of "at least one" occurrence of event
A
A
A
in repeated trials?
QUESTION
What is the definition of probability for an event
E
E
E
in a finite equally likely sample space?
QUESTION
Identify
P
(
A
∩
B
)
P(A\cap B)
P
(
A
∩
B
)
if
P
(
A
)
=
0.3
P(A)=0.3
P
(
A
)
=
0.3
and
P
(
B
∣
A
)
=
0.5
P(B\mid A)=0.5
P
(
B
∣
A
)
=
0.5
.
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ANSWER
0.15
0.15
0.15
. Apply the multiplication rule:
P
(
A
∩
B
)
=
0.3
×
0.5
=
0.15
P(A\cap B) = 0.3 \times 0.5 = 0.15
P
(
A
∩
B
)
=
0.3
×
0.5
=
0.15
.
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