Question

byIf the joint density function of X and Y is given f(x, y)=\left\{\begin{array}{ll}

\frac{2}{7}(x+2 y), & 0

0, & \text { elsewhere, }

\end{array}\right. \text { find the expected value of } g(X, Y)=\frac{X}{Y^{3}}+X^{2} Y \text {. }

Fig: 1

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