0 votes 0 votes The variance of the random variable $X$ with probability density function $f(x)=\dfrac{1}{2}\mid x \mid e^{- \mid x \mid}$ is __________. Probability and Statistics gate2015-ec-3 numerical-answers probability-and-statistics propability random-variable variance + – Milicevic3306 asked Mar 27, 2018 • retagged Mar 3, 2021 by Lakshman Bhaiya Milicevic3306 16.0k points 172 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.