Which line is the best model for the data in the scatter plot?
40
40
35
35
.
30
Variable B
30
Variable B
.
.
25
25
.
20
20
.
30
20
60
20
30
60
40 50
Variable A
40 50
Variable A
40
40
35
35
30
Variable B
Variable
30
25
25
20+
20
20
30
40
50
60
20
30
40
50
60