The first one is porportional the second one is not. We can figure this out by trying to figure out a pattern between the relationships.
6-4
12-8
24-16
We can see that the proportional relationship in the first one is 3-4, because if we divide each left one by 3 and the second one by 2, the number will be the same!
The median is the central number of the data. Align numerically (2, 2, 4, 4) and find the center number. Since there are two, find the average of 2 and 4 to get 3. ([2+4]/2=3)
