anonymous
  • anonymous
if the joint probability density of X and Y is given by f(x,y)= .25(2x+y) for 0
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
its a double integral so take the integral with respect to x with the limits of x and then take that answer and do a second integral with respect to y and use those limits
anonymous
  • anonymous
since I'm only looking for the marginal density of X the book says g(x)=\[\int\limits_{?}^{?}\]f(x,y)dy for \[-\infty\]
anonymous
  • anonymous
ok wow I didn't know it was going to start a new paragraph everytime I used the equation editor

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anonymous
  • anonymous
i would try that since your taking integral with respect to y
anonymous
  • anonymous
It is a double integral first evaluate the integral of y, then evaluate the integral of x\[\int\limits_{0}^{1}\int\limits_{0}^{2}(1/2x+1/4y)dydx\]

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