A group of 50 employees recorded the distance they walked to work. The results are summarized in the table.
| Distance (d d\,d km) | Frequency |
|---|---|
| 1 to 5 | 10 |
| 6 to 10 | 16 |
| 11 to 15 | 12 |
| 16 to 20 | 7 |
| 21 to 25 | 5 |
Calculate an estimate for the mean distance walked.
Practise OCR GCSE Maths Averages from Frequency Tables with exam-style questions for Foundation and Higher tier. 32 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.