The Pearson coefficient of correlation r equals 1 when there is/are no:
A)explained variation.
B)unexplained variation.
C)y-intercept in the model.
D)outliers.

Question

Quizplus · Accepted Answer

The Pearson coefficient of correlation, r, equals 1 when there is a perfect positive linear relationship between two variables. This means all points lie exactly on a straight line with a positive slope, and there is no unexplained variation around this line. Hence, the correct answer is that there is no unexplained variation.

The Pearson Coefficient of Correlation R Equals 1 When There