If the coefficient of determination is equal to 1, then the correlation coefficient A. must also be equal to 1 B. can be either -1 or +1 C. must be -1 D. can be any value between -1 to +1
Added by Jessica W.
Step 1
So, we have: $R^2 = r^2$ Given that $R^2 = 1$, we can write: $1 = r^2$ Now, to find the possible values of $r$, we can take the square root of both sides: $\sqrt{1} = \sqrt{r^2}$ Show more…
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