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Well, without seeing the diagrams:
 
(A) r = -.969 --> points will be tightly scattered about a line with slope -1
 
(B) r = -.049 --> points will almost have no pattern at all
 
(C) r = -1 --> points will all lie on a line with slope -1
 
(D) r = -.992 --> points will be almost completely on a line with slope -1
 
 
J.T.

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