Re: ISI 2009

Posted by neha on Mar 31, 2012; 7:09am
URL: http://discussion-forum.276.s1.nabble.com/ISI-2009-tp7423881p7424012.html

question 3:
here x + y =100 , so the number of white balls and the number of red balls have a perfect negative correlation, hence the answer should be -1.