Grouped Frequency Tables
This deep dive covers Grouped Frequency Tables within Frequency Tables for GCSE Mathematics. Revise Frequency Tables in Statistics for GCSE Mathematics with 11 exam-style questions and 20 flashcards. Use this page as part of a wider topic revision path rather than treating it as an isolated fact. It is section 4 of 8 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 4 of 8
Practice
11 questions
Recall
20 flashcards
Grouped Frequency Tables
When to Use Grouped Data
Use grouped frequency tables when:
- Data has a wide range of values
- Continuous data (like heights, weights)
- You want to see patterns more clearly
- Individual values would make a very long table
Creating Grouped Frequency Tables
Example: Test scores of 30 students (out of 100)
45, 67, 72, 58, 63, 81, 56, 74, 68, 59, 77, 82, 54, 71, 66, 78, 83, 62, 69, 75, 57, 73, 64, 79, 85, 61, 76, 70, 65, 80
| Score Range | Frequency |
|---|---|
| 40 ≤ s < 50 | 1 |
| 50 ≤ s < 60 | 5 |
| 60 ≤ s < 70 | 9 |
| 70 ≤ s < 80 | 8 |
| 80 ≤ s < 90 | 7 |
| Total | 30 |
Key observations:
- Modal class: 60 ≤ s < 70 (highest frequency = 9)
- Class width = 10 marks for all classes
- Most students scored between 60-80 marks
Keep building this topic
Read this section alongside the surrounding pages in Frequency Tables. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Frequency Tables
The table below shows the number of books read by students in a month: | Books read | Frequency | |---|---| | 0 | 4 | | 1 | 7 | | 2 | 11 | | 3 | 6 | | 4 | 2 | What is the mode?
Explain why the mean calculated from a grouped frequency table is described as an 'estimate' rather than an exact value.
Quick Recall Flashcards
11 questions on Frequency Tables — practise free
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