Communication Research: Expected Value

Communication Research

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TheoryAndPracticeOfDigitalStorytelling › Once › Project~Twitter_Pattern › Find › DateTimeMacro › ExpectedValue

$E[X] = (\sum_(i=1)^n (X_i))$
$E[X+Y] = E[X] + E[Y]$
$E[cX] = cE[X]$
$E[X*Y] =E[X] E[Y]$

가정: X 와 Y 가 서로 독립적 (independent) 일때

last modified 2012-05-08 14:46:14
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