Let $X_1$ and $X_2$ have jointly density function $f$ given by
$f(x_1,x_2)=\left\{\begin{array}{cc}2;&0
Find $P (\frac{1}{6}
Let $X_1$ and $X_2$ have jointly density function $f$ given by
$f(x_1,x_2)=\left\{\begin{array}{cc}2;&0
Find $P (\frac{1}{6}