The cumulative frequency graph shows the time, in minutes, 120 students took to complete a logic puzzle.
| Time (min) | Cumulative frequency |
|---|---|
| 10 | 5 |
| 20 | 22 |
| 30 | 45 |
| 40 | 75 |
| 50 | 105 |
| 60 | 118 |
| 70 | 120 |
The 120 students had a minimum completion time of 12 minutes and a maximum completion time of 68 minutes.
Draw a box plot to show the distribution of the times taken to complete the puzzle.
Box Plots Questions
Practise OCR GCSE Maths Box Plots with exam-style questions for Foundation and Higher tier. 36 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.