Sets, Venn Diagrams, and Overlap
Quantitative Reasoning · Flashcards
QUANTITATIVE REASONING · FLASHCARDS
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QUESTION
Find
∣
A
∪
B
∣
|A\cup B|
∣
A
∪
B
∣
if
∣
U
∣
=
50
|U|=50
∣
U
∣
=
50
and
∣
(
A
∪
B
)
c
∣
=
12
|(A\cup B)^c|=12
∣
(
A
∪
B
)
c
∣
=
12
.
QUESTION
What is the definition of the symmetric difference
A
△
B
A\triangle B
A
△
B
?
QUESTION
What is the relationship between
A
∖
B
A\setminus B
A
∖
B
and
A
∩
B
c
A\cap B^c
A
∩
B
c
?
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ANSWER
A
∖
B
=
A
∩
B
c
A\setminus B=A\cap B^c
A
∖
B
=
A
∩
B
c
. Expresses set difference as the intersection of A with the complement of B.
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