CAIE IGCSE Mathematics Core C9.3 Averages and Range Topic Practice

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Covered syllabus points

C9.3.1 Calculate the mean, median, mode and range for individual data and

Question 1

[Maximum number: 3]

The stem-and-leaf diagram shows the scores of each of 27 students in a test.

Table for Question 1 — CAIE IGCSE Mathematics Core

Key: 2|8 represents a score of 28

Question (a)

(a)

Find the range of the scores.

[ 1 ]

Question (b)

(b)

When the score for another student is included in the diagram the new range is 38.
Find the two possible scores for this student.

[ 2 ]
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