:1 This problem refers to diagram ? on page ? of the test.
Which of the following is correct?
a. The solid line is both the SD line and the regression
line.

b. The dashed line is both the SD line and the regression
line.

c. The solid line is the regression line and the dashed line
is the SD line.

d. The dashed line is the regression line and the solid line
is the SD line.