Re: CUCET PGQP 25

Posted by hariom arora on
URL: http://discussion-forum.276.s1.nabble.com/CUCET-PGQP-25-tp7609107p7609119.html

Ans is 2
E(x^4)-{E(x^2)}^2=var(x^2)
3 sigma^2-sigma^2=2sigma^2
Sigma=1 hence ans is 2