Two exist for one set of bivariate data. A) regression lines B) correlation coefficients C) coefficients of determination D) all of the other alternatives are correct.

Question

Quizplus · Accepted Answer

For one set of bivariate data, there are indeed two regression lines: one for Y on X and another for X on Y. These lines are generally not the same unless the correlation coefficient is exactly 1 or -1. Correlation coefficients and coefficients of determination, on the other hand, are single values that summarize the strength and direction of a linear relationship between two variables.

Two Exist for One Set of Bivariate Data