Re: DSE 2005

Posted by prasidhi on Jun 23, 2014; 9:16pm
URL: http://discussion-forum.276.s1.nabble.com/DSE-2005-tp7593444p7593447.html

cov ( x+y , y+z) = 144

var (x+y) = varx + vary + cov xy = 169
sly var(x-y) = 225

correlation coefficeint = 144 / (13*15) = 48/65