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OpenStudy (anonymous):
Probability theory. why is this true?
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OpenStudy (anonymous):
OpenStudy (perl):
this has to do with expected value
OpenStudy (perl):
E(a*X) = a*E(X)
OpenStudy (perl):
we know that E(X) = sum x * f(x)
OpenStudy (perl):
|dw:1415291742910:dw|
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