Question

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

Colours	Number 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	Number of people	In fraction	Central angle
Blue	18	$\frac{18}{36}$	$\frac{18}{36}\times 360\degree=180\degree$
Green	9	$\frac{9}{36}$	$\frac{9}{36}\times 360\degree=90\degree$
Red	6	$\frac{6}{36}$	$\frac{6}{36}\times 360\degree=60\degree$
Yellow	3	$\frac{3}{36}$	$\frac{3}{36}\times 360\degree=30\degree$