Exam-style question
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A survey was conducted to find out the number of books read by students in a month. The data is grouped, and you need to analyze it using a cumulative frequency diagram.
Data Table
Books Read by Students
The table shows the number of books read and the number of students in each group.
| Books Read | Number of Students |
|---|---|
| 0-2 | 5 |
| 3-5 | 9 |
| 6-8 | 14 |
| 9-11 | 7 |
| 12-14 | 5 |
- a[2]
Write down the cumulative frequency for each group.
Aim for approximately 2 distinct marking points.
- b[3]
Sketch the cumulative frequency diagram using the cumulative frequencies from part (a).
Aim for approximately 3 distinct marking points.
- c[1]
Explain how to find the interquartile range from the cumulative frequency diagram.
Aim for approximately 1 distinct marking point.
0 of 3 parts answered
Answer every part before opening the mark scheme.
Maths method check
- Topic focus: Cumulative frequency diagrams.
- Question style: structured_mathematics.
- Reasoning demand: reasoning.
- Check the operation, notation, units, and final answer form against the question before moving on.
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