Is the expected value E[x]or E[y] of a bivariate pdf fXY(xy)(adsbygoogle = window.adsbygoogle || []).push({});

\int x f(x,y)dx

or

E[y]

\int y f(x,y)dy ?

example if f(x,y) = x+y

E[X] = \int x *(x+y)dx

regards

Brendan

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# Expected value of bivariate pdf

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