Five hundred students were asked to identify their favorite electronic device. The results are shown in the circle graph. If 25,
000 students were surveyed, how many would you expect to chose a cell phone as their favorite electronic device?
Favorite Electronic Device
Other
11%
Cell
Phone
33%
Laptop
27%
Tablet
29%
8,805
8,250
16,500
10
The circumference of a circle can be found using the formula , where is the circle's circumference and is the circle's radius. We know that and that we are solving for . Therefore: