Which statement about correlation is true?
I. Regression based on data that are summary statistics tends to result in a higher correlation.
II. If $r ^ { 2 } = 0.95$
0)95, the response variable increases as the explanatory variable increases.
III. An outlier always decreases the correlation.
A) III only
B) II only
C) none of these
D) I, II, and III
E) I only

Question

Quizplus · Accepted Answer

Regression based on summary statistics often results in a higher correlation because it reduces variability.

Which Statement About Correlation Is True? I r2=0.95r ^ { 2 } = 0.95r2=0.95

Which Statement About Correlation Is True?
I $r ^ { 2 } = 0.95$