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:

https://csedoubts.gateoverflow.in/26839/nielit-nic-scientist-b-2020-set-c-ques-75?show=26967#a26967