1 votes 1 votes A Poisson random variable $X$ is given by $\operatorname{Pr}\{X=k\}=\mathrm{e}^{-\lambda} \lambda^{k} / k !, k=0,1,2, \ldots$ for $\lambda>0$. The variance of $X$ scales as $\lambda$ $\lambda^{2}$ $\lambda^{3}$ $\sqrt{\lambda}$ None of the above Probability and Statistics tifr2012 probability-and-statistics probability poisson-distribution + – admin asked Dec 8, 2022 • recategorized Jan 17, 2023 by Lakshman Bhaiya admin 46.4k points 74 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.