True or False? The r 2 value and a least squares regression line can be an excellent way to demonstrate the degree of correlation between two variables, and the type of association between the two...

True or False? The
r
²
value and a least squares regression line can be an excellent way to demonstrate the degree of correlation between two variables, and the type of association between the two variables.

This quation was asked twice in bartley but the answers were different. Clarification is needed. Thank you