Hello all,

I am stuck with a problem. It's been ages since i touched my math books. I have two sets of data points.
(x1,x2,x3,x4,x5,x6,x7....) and (y1,y2,y3,y4.....)
I would like to know how good these two series co-relate to each other. Can any one let me know the solution for this problem.

Thanks in advance,
Ranjith Sajja