Re: jnu sss 2018, stats question

Posted by MomoChan on
URL: http://discussion-forum.276.s1.nabble.com/jnu-sss-2018-stats-question-tp7608207p7608335.html

 The answer will be (C) according to my calculations .
E(YW) = -54 , E(Y) = 9 , E(W) = 3 , Cov (Y,W) = -81 , Var(Y) = 81 , Var(W) = 81 , Corr. coffe = -1