Chapter 2. Probability
2.1 Sample Space and Events
▪
Random Experiment
: The result of experiment is uncertain unpredictable one of the
many outcomes
e.g.) flipping a coin, tossing two dice, lifetime of a car
▪
Sample Space
: The set of all possible outcomes of an experiment (
S
,
U
)
▪
Event
: The subset of a sample space
{ :
}
A
x x
S
=
∈
▪
Set theory
S
,
A
,
B
: set
'
(union),
(intersection),
(complement) ,
A
A
B
⊂
∪
∩
…
{
}
{0}
φ
=
≠
A
B
φ
=
∩
: mutually exclusive (disjoint)
A
B
S
=
∪
: mutually exhaustive

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