Question

A group of 120 people is asked about their favourite food.
The data obtained is shown in the following table. Draw
a pie chart for the given information.​

Answer 1

Given : A group of 120 people is asked about their favourite food.

To Find :  Draw a pie chart

Solution :

Food Type      Number of people      Angle

 Chinese                      30                  (30/120) * 360 = 90°

South Indian               40                  (40/120) * 360 = 120°

Other Food                 25                  (25/120) * 360 = 75°

North Indian                25                  (25/120) * 360 = 75°

A pie chart (or a circle chart) is a circular statistical graphic, which is divided into slices to illustrate numerical proportion. In a pie chart, the arc length of each slice (and consequently its central angle and area), is proportional to the quantity it represents.

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Answer 2

Step-by-step explanation:

$\small \tt \: chinese \: = \frac{30}{120} \times 360$

=90°

Number of people = 30

$\small \tt \: south \: indian \: = \frac{40}{120} \times 360$=120°

Number of people = 40

$\small \tt \:north \: indian = \: \frac{25}{120} \times 360$=75°

Number of people = 25

$\small \tt \: other \: food \: = \frac{25}{120} \times 360$

=75°

Number of people = 25

Now you can make pie chart easily.