Science, Maths & Technology
Diagrams, charts and graphs
...based on large sets of data. The pie chart below summarises the average weekly expenditure by a sample of families on food and drink. The whole circle represents 100% of the expenditure. The circle is then divided into ‘segments’, and the area of each segment represents a fraction or percentage of the total expenditure. For instance, groceries account for 38.0% of the...