CAIE IGCSE Mathematics Core C9.2 Interpreting Statistical Data Topic Practice

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Question 1

[Maximum number: 1]

Miguel works in an office.

Figure for 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.

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

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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