ISI 2008 MATH PROBLEM...

Posted by leon on Mar 29, 2015; 2:32pm
URL: http://discussion-forum.276.s1.nabble.com/ISI-2008-MATH-PROBLEM-tp7596028.html

Am not able to solve this problem, please help

The correlation coefficients between two variables X and Y obtained from the two
equations 2x + 3y -1= 0 and 5x - 2y + 3 = 0 are
(a) equal but have opposite signs
(b)-2/3 and 2/5
(c) 1/2 and -3/5
(d) Cannot say