True or false? Identify which of these statements are true and which are false.

(a) Correlation coefficient r quantifies the relationship between quantitative variables X and Y.

(b) Correlation coefficient r quantifies the linear relation between quantitative variables X and Y.

(c) The closer r is to 1, the stronger is the linear relation between X and Y.

(d) The closer r is to −1 or 1, the stronger is the linear relation between X and Y.

(e) If r is close to zero, X and Y are unrelated.

(f) If r is close to zero, X and Y are not related in a linear way.
(g) The value of r changes when the units of measure are changed.
(h) The value of b changes when the units of measure are changed.