Describing Events in Sample Spaces
Statistics and Probability · Flashcards · Application
STATISTICS AND PROBABILITY · FLASHCARDS
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QUESTION
Find
A
∪
B
A\cup B
A
∪
B
if
A
=
{
1
,
2
,
3
}
A=\{1,2,3\}
A
=
{
1
,
2
,
3
}
and
B
=
{
3
,
4
,
5
}
B=\{3,4,5\}
B
=
{
3
,
4
,
5
}
.
QUESTION
Identify the event: roll one die,
A
=
A=
A
=
"odd,"
B
=
B=
B
=
"prime." What is
A
∩
B
A \cap B
A
∩
B
?
QUESTION
Identify
A
∩
B
c
A\cap B^c
A
∩
B
c
if
S
=
{
1
,
2
,
3
,
4
,
5
,
6
}
S=\{1,2,3,4,5,6\}
S
=
{
1
,
2
,
3
,
4
,
5
,
6
}
,
A
=
{
2
,
3
,
4
}
A=\{2,3,4\}
A
=
{
2
,
3
,
4
}
,
B
=
{
4
,
5
,
6
}
B=\{4,5,6\}
B
=
{
4
,
5
,
6
}
.
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ANSWER
A
∩
B
c
=
{
2
,
3
}
A\cap B^c=\{2,3\}
A
∩
B
c
=
{
2
,
3
}
.
B
c
=
{
1
,
2
,
3
}
B^c=\{1,2,3\}
B
c
=
{
1
,
2
,
3
}
, so
A
∩
B
c
A\cap B^c
A
∩
B
c
finds common elements.
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