The frequency table shows the mass, w w\,w grams, of 80 kittens in a rescue center.
| Weight (w w\,w grams) | Frequency |
|---|---|
| 100<w≤120100 < w \leq 120100<w≤120 | 5 |
| 120<w≤140120 < w \leq 140120<w≤140 | 12 |
| 140<w≤160140 < w \leq 160140<w≤160 | 28 |
| 160<w≤180160 < w \leq 180160<w≤180 | 20 |
| 180<w≤200180 < w \leq 200180<w≤200 | 10 |
| 200<w≤220200 < w \leq 220200<w≤220 | 5 |
a.[2]
On the grid, plot a cumulative frequency graph for this information.
b.[1]
Find an estimate for the median mass.
Cumulative Frequency Questions
Practise OCR GCSE Maths Cumulative Frequency with exam-style questions for Foundation and Higher tier. 24 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.