Table 3 shows an extract from a student's questionnaire results looking at the perception of safety in three different urban parks.
Table 3
| Site A Yes | Site A No | Site B Yes | Site B No | Site C Yes | Site C No | |
|---|---|---|---|---|---|---|
| Question 3: Do you feel safe in this park after dark? | 14 | 6 | 9 | 11 | 8 | 12 |
Calculate the mean number of people who answered 'Yes' to Question 3 across the three sites. Write your answer to 1 decimal place. Show your workings.
