Question

Draw a pie chart showing the following information. The table shows the colours preferred by a group of people.

Colours	No. of people
Blue	18
Green	9
Red	6
Yellow	3
Total	36

Answer 1

Here, central angle = 360^ and total number of people = 36

Colours	No.of people	in fraction	Central angles
Blue	18	18/36 = 1/2	1/2 x 360° = 180°
Green	9	9/36 = 1/4	1/4 x 360° = 90°
Red	6	6/36 = 1/6	1/6 x 360° = 60°
Yellow	3	3/36 = 1/12	1/12 x 360° = 30°