Six students all took the same test. their scores were 70,71,75,75,88, and 89. what is the mean absolute deviation for the test scores?
a)7
b)7.5
c)75
d)78

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .