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3. Draw a pie chart showing the following information.

The table shows the colours preferred by a group of people.

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colours	number of people	in fraction	central angles
Blue	18	$\frac{18}{36}=\frac{1}{2}$	$\frac{1}{2}\times 360 \degree= 180\degree$
Green	9	$\frac{9}{36}=\frac{1}{4}$	$\frac{1}{4}\times 360 \degree= 90\degree$
Red	6	$\frac{6}{36}=\frac{1}{6}$	$\frac{1}{6}\times 360 \degree= 60\degree$
Yellow	3	$\frac{3}{36}=\frac{1}{12}$	$\frac{1}{12}\times 360 \degree= 30\degree$

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