Teach Genie
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Question 1
3 marksThe table shows information about the age of 80 teachers.
| Age (years) | Frequency |
|---|---|
| 20<a≤3020 < a \leq 3020<a≤30 | 20 |
| 30<a≤3530 < a \leq 3530<a≤35 | 22 |
| 35<a≤4035 < a \leq 4035<a≤40 | 16 |
| 40<a≤5040 < a \leq 5040<a≤50 | 13 |
| 50<a≤6550 < a \leq 6550<a≤65 | 9 |
In a histogram, what does the area of a bar represent?
Revision notes for AQA GCSE Maths Histograms. Open the guide for explanations and worked examples. Written against the AQA GCSE Maths (8300) specification, so the content matches what's examinable rather than general Maths background.
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A histogram uses the class interval 7≤t<157 \le t < 157≤t<15. What is the class width?
