Which statement about correlation is true?
I. Regression based on data that are summary statistics tends to result in a higher correlation.
II. If $\text { If } r ^ { 2 } = 0.95$
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) I only
D) none of these
E) I, II, and III

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 If r2=0.95\text { If } r ^ { 2 } = 0.95 If r2=0.95

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