Question

Suppose you want to show the data in a circle graph. Find the measure of the central angle for 7th grade. Round your answer to the nearest degree, if necessary.

Grade Number of Students
4th 45
5th 25
6th 60
7th 50
8th 60
9th 45

Answer 1

how many students are there total

Answer 2

285

Answer 3

how many in 7th grade

Answer 4

50

Answer 5

so the percentage of 7th graders is

(50/285)*100 = 17.54%

Answer 6

Now take 17.54% of 360 to get

17.54% of 360 = 0.1754*360 = 63.144

So the central angle for the 7th graders is roughly 63.144 degrees

Answer 7

thanx

Answer 8

np