On a scatter plot in which we plan to develop a regression-based forecast, a smattering of points shows a pattern of a relationship between the “x” and “y” variables. Specifically, when x tends to increase , y tends to decrease . Most likely, the coefficient of correlation (r) is between:

a. -2 and -1

b. 0 and +1

c. +1 and +2

d. -1 and 0