DSE 2010 Q47 ,48

Posted by Khagesh on Jun 17, 2012; 10:07am
URL: http://discussion-forum.276.s1.nabble.com/DSE-2010-Q47-48-tp7577947.html

Sir, or can anybody expalin to me the solution for d foll question :


Q1: X is  a normally distributed rndm var wid mean 0 n var= sigma. Wats d mean of X^2 ??


Q2: X is a rndm var wid pdf as:


         f(x)={kx,  if x E [0,5)
               
                 k(10-x), if x E [5,10)
               
                0, if x E [10,infinity)

                 }