0 0 votes Lifetime of an electric bulb is a random variable with density $f(x)=kx^2$ , where $x$ is measured in years. If the minimum and maximum lifetimes of bulb are $1$ and $2$ years respectively, then the value of $k$ is ________. Probability & Statistics gate2014-ee-3 probability-and-statistics random-variable probability-density-function numerical-answers + – Misbah Ghaya 470 views answer comment Share Follow 0 reply Please log in or register to add a comment.
