0 0 votes Consider two identically distributed zero-mean random variables $U$ and $V.$ Let the cumulative distribution functions of $U$ and $2V$ be $F(x)$ and $G(x)$ respectively. Then, for all values of $x$ $F(x) - G(x) \leq 0$ $F(x) - G(x) \geq 0$ $(F(x) - G(x)) \cdot x\leq 0$ $(F(x) - G(x)) \cdot x\geq 0$ Probability and Statistics gate2013-ec probability-and-statistics random-variable + – Milicevic3306 756 views answer comment Share Follow Add Sync Questions Print 0 reply Please log in or register to add a comment.