Answer:
The last one is correct.
Step by step:
Each income has ONLY one outcome.
If a polygon is convex, then the sum of the measures of the exterior angles, one at each vertex, is 360°
Answer is 160
explanation: add all of them up and divid by how many numbers are in the data set
74+81+77+88=320
then divid 320 by 4 =160
