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The sums of squares Sxx = 36 and Syy = 25 and the sum of products Sxy = 24. Find r.

A0.80
B0.67
C0.96
D0.48
Answer & Solution
Correct answer: A. 0.80
r = 24 / sqrt(36 x 25) = 24/30 = 0.8.
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