0 votes 0 votes A continuous random variable $X$ has a probability density function $f(x)=e^{-x}, 0< x< \infty$. then $P\{X> 1\}$ $0.368$ $0.5$ $0.632$ $1.0$ Probability & Statistics gate2013-ee probability-and-statistics probability random-variable probability-density-function + – piyag476 asked Feb 11, 2017 • retagged Mar 7, 2021 by Lakshman Bhaiya piyag476 1.6k points answer comment Share See all 0 reply Please log in or register to add a comment.