Question

Students on a field trip at an amusement park were asked their grade in school. The table shows the results of the survey.

Answer 1

C) I KNOW IT IS!!
SO DO THIS ONE!!

Answer 2

Answer:  Option 'C' is correct.

Step-by-step explanation:

Since we have given that

Grade    Number of Students

4th                   45

5th                   25

6th                   60

7th                   50

8th                    60

9th                    45

Total number of students is given by

45+25+60+50+60+45 = 285

So, the central angle for 9th grade would be

$\dfrac{45}{285}\times 360^\circ\\\\=56.8^\circ\\\\\approx 57^\circ$

Hence, Option 'C' is correct.