0 votes 0 votes X and Y are two independent random variables with variances 1 and 2, respectively. Let Z = X – Y. The variance of Z is 0 1 2 3 Probability and Statistics gate2018-in probability-and-statistics probability random-variable variance + – gatecse asked Feb 20, 2018 • recategorized Mar 20, 2021 by Lakshman Bhaiya gatecse 1.4k points answer See all 0 reply