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The regression coefficients are byx = 0.9 and bxy = 0.4. Find r.

A0.65
B0.36
C0.60
D0.85
Answer & Solution
Correct answer: C. 0.60
r is the geometric mean of the two slopes: sqrt(0.9 x 0.4) = sqrt(0.36) = 0.6.
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