CAIE IGCSE Mathematics Core Drawing Statistical Diagrams

Practise converting frequencies into accurately scaled charts and arranging raw values into ordered stem-and-leaf diagrams with an unambiguous key.

Exam points

calculate each pie-chart sector as its frequency proportion of 360° before drawing the radius
apply the given axis scale or pictogram key consistently when completing missing categories
sort every leaf within its stem and write a key that identifies the represented number and unit

[Maximum number: 3]

Miguel works in an office.

Miguel records the length of time of each telephone call he receives, correct to the nearest minute.
The recorded times are shown in the table.

Draw a bar chart to show this information.

Complete the scale on the frequency axis.

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