alleryStart learning →If Cov(x, y) = 12, SD of x = 3 and SD of y = 5, what is r?
A0.20
B0.60
C0.80
D1.25
Answer & Solution
Correct answer: C. 0.80
r = 12 / (3 x 5) = 12/15 = 0.8.
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