Question

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

Answer 1

Draw a pie chart by using the given information.

The table is given below:

Colours	Number of people
Blue	$18$
Green	$9$
Red	$6$
Yellow	$3$
Total	$\mathbf{36}$

To draw the pie char, determine the central angle as follows:

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

The diagram is shown below:

Hence, the diagram of pie chart is shown below: