So at the top of my notes I have -1 less than or equal to r, and r is less than or equal to 1.

and:

a) if r>c, positive correlation.

b) if -c less than or equal to r, and r is less than or equal to c, then no correlation.

c) r<-c, then negative correlation.

I computed a data set for the problem trying to see if there is linear correlation.

I got r = .96

n=6, which is the number of data entries.

But how do I find the c? I forgot :S.