On a graph, points are grouped to form a line with positive slope. Points (3, 9), (7, 1) and (11, 2) are not on the line.
Which points would be considered outliers?
Check all that apply.

(3, 9)
(4, 4)
(6, 5)
(7, 1)
(8, 7)
(11, 2)
none