1 votes 1 votes Let $X_1,\dots X_{50}$ be independent random variables following $N(0,1)$ distribution. Let $\Sigma _{i=1}^{50} X^2_i,$ and $E(Y)=a$ and $Var(Y)=b.$ Then, the ordered pair $(a,b)$ is: $(50,100)$ $(50,50)$ $(25,50)$ $(25,100)$ Unknown Category nielit-scb-2020 normal-distribution + – gatecse asked Dec 9, 2020 • edited Dec 11, 2020 by gatecse gatecse 627 views answer comment Share Follow See all 2 Comments See all 2 2 Comments reply ankitgupta.1729 commented Dec 10, 2020 reply Follow Share https://csedoubts.gateoverflow.in/26839/nielit-nic-scientist-b-2020-set-c-ques-75?show=26967#a26967 1 votes 1 votes _Shubham_.Singh_ commented Sep 6, 2023 reply Follow Share https://testbook.com/question-answer/let-x1-x50-be-independent-random-variables-fo--6000574310efd078c9b406e9 0 votes 0 votes Please log in or register to add a comment.