CAIE IGCSE Mathematics Core Interpreting Statistical Data

Practise extracting values from statistical displays, comparing distributions with numerical evidence and recognising when the data cannot support a conclusion.

Syllabus
2028–2030
Topic
C9.2
Level
Core

Exam points

  • read the relevant category, percentage or difference directly from a table or statistical diagram
  • compare two data sets with separate evidence about typical value and variation or spread
  • reject or qualify a conclusion when an extreme value or limited comparison makes it unreliable

Covered syllabus points

C9.2.1 Read, interpret and draw inferences from tables and statisticalC9.2.2 Compare sets of data using tables, graphs and statistical measures.C9.2.3 Appreciate restrictions on drawing conclusions from given data

C9.2 Interpreting statistical data question 1

[Maximum number: 1]

Miguel works in an office.

Figure for Question C9.2 Interpreting statistical data question 1 — CAIE IGCSE Mathematics Core

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.

Use the bar chart to write down the modal group.

C9.2 Interpreting statistical data question 2

[Maximum number: 2]

Write down two comments comparing the times of students from College A with the times of students from College B.

1

2

C9.2 Interpreting statistical data question 3

[Maximum number: 1]

Daryl records the number of hours in a week 8 people spend exercising.
5, 2, 1.5, 3, 18, 4.5, 2, 4

Explain why the mean may not be a suitable average to use.

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