Number
Number
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Algebra
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Mock Exams

2.2 Interpreting Data

worksheet
1. 50 people were asked their favourite take-away food.
Complete the following table and represent the following data in a pie chart. You will need a protractor.

Take-away Freq. Sector Angle % of Total
Indian 25
Chinese 10
Fish and Chips 10
Other 5
Total 50

Example Calculation – Indian Take-Away
Sector Angle = 25 50 ×360° = 180°

,

Percentage = 25 50 ×100% = 50%

Pie Chart Calculations

Sector Angle

Sector Angle =  value total ×360°

Percentage

Percentage = value total ×100%
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