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Interpret a Correlation Coefficient
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AP Psychology
AP.055 Interpret a Correlation Coefficient
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A study reports r = +0.10 between variable A and variable B, and r = -0.90 between variable C and variable D. Which statement correctly compares the relationships?
A
The C-D relationship is weaker because negative coefficients always mean weak relationships.
B
The two relationships have equal strength because both are between -1 and +1.
C
The A-B relationship is stronger because it is positive.
D
The C-D relationship is much stronger because -0.90 is much farther from zero than +0.10.
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