The cumulative frequency graph shows the reaction times, in milliseconds (ms), of 100 students.
| Time (ms) | Cumulative frequency |
|---|---|
| 200 | 10 |
| 240 | 25 |
| 280 | 50 |
| 320 | 75 |
| 400 | 100 |
The students had a minimum reaction time of 185 ms and a maximum reaction time of 390 ms.
Draw a box plot to show the distribution of the reaction times.
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.