Which of these represents a perfect correlation?
A) -1.00 only
B) 1.00 only
C) 0
D) -1.00 or 1.00

Question

Quizplus · Accepted Answer

A perfect correlation means that there is a strong and consistent relationship between two variables. The correlation coefficient (r) ranges from -1 to +1, where -1 indicates a perfect negative correlation, +1 indicates a perfect positive correlation, and 0 indicates no correlation. Therefore, the best choice(s) for a perfect correlation would be a correlation coefficient of either -1.00 or 1.00, which is only represented by choice D.

Which of These Represents a Perfect Correlation