Re: JNU 2013 SSS DISCUSSION

Posted by kangkan on Feb 14, 2014; 12:32pm
URL: http://discussion-forum.276.s1.nabble.com/JNU-2013-SSS-DISCUSSION-tp7584716p7584778.html

alrihgt..i figure out 90..answer is d... E(X^2)=var(x)+{E(X)}^2=2

E(z)=a1(E (X^2)) +a2(E(X2^2))...
      =2sigma(ai)