Re: Simple doubt on Expectations (Probability)

Posted by varnika1880 on Jun 06, 2016; 7:18am
URL: http://discussion-forum.276.s1.nabble.com/Simple-doubt-on-Expectations-Probability-tp7601231p7601232.html

Even m getting it as X/2 only ... .can u plz tell which formula has been used in the answer given ...