Question
If the coefficient of determination is o.81, the correlation coefficient
Select one:
a. must be negative
b. could be either +o.9 or -0.9
c. is o.6561
d. must be positive
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Transcribed Image Text

If the coefficient of determination is o.81, the correlation coefficient Select one: a. must be negative b. could be either +o.9 or -0.9 c. is o.6561 d. must be positive