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Edexcel IGCSE Math A Higher 6.2 Hd the Interquartile Range From a Cumulative Frequency Questions

Practise cumulative-IQR questions by reading the lower and upper quartiles from the graph and subtracting the two estimates.

Syllabus
First assessment 2018
Course
Math A 4MA1
Level
Higher

Exam points

  • Read lower and upper quartiles from a cumulative frequency graph accurately.
  • Subtract the quartile estimates to find the interquartile range in context.

Edexcel IGCSE Math A Higher 6.2 Hd the Interquartile Range From a Cumulative Frequency Questions question 1

[Maximum number: 2]

A group of 60 students each sat an algebra test and a geometry test.
Each test was marked out of 110
The cumulative frequency graph gives information about the marks gained by the 60 students in the algebra test.

Cumulative frequency

Figure for Question Edexcel IGCSE Math A Higher 6.2 Hd the Interquartile Range From a Cumulative Frequency Questions question 1 — Edexcel IGCSE Math A Higher

Use the graph to find an estimate for the interquartile range of the marks gained in the algebra test.

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