If two variables were perfectly correlated, the correlation coefficient r would equal
A) 0
B) -1
C) 1
D) B or C
E) none of the above

Name: If two variables were perfectly correlated, the correlation coefficient r would equal A) 0 B) -1 C) 1 D) B or C E) none of the above
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Question

Quizplus · Accepted Answer

When two variables are perfectly correlated, the correlation coefficient r can equal either 1 (perfect positive correlation) or -1 (perfect negative correlation), hence the correct answer is D (B or C).

If Two Variables Were Perfectly Correlated, the Correlation Coefficient R