0 votes 0 votes Consider the following probability mass function (p.m.f) of a random variable $X:$ $$p(x,q) = \begin{cases} q & \text{ if } X=0 \\ 1 – q & \text{ if } X=1 \\ 0 & \text{otherwise} \end{cases} $$ If $q=0.4$, the variance of $X$ is _________ Probability and Statistics gate2015-ce-1 numerical-answers probability-and-statistics probability probability-mass-function random-variable + – Milicevic3306 asked Mar 26, 2018 retagged Mar 11, 2021 by Lakshman Bhaiya Milicevic3306 11.9k points answer See all 0 reply