The table shows information about the number of goals scored per game by a football team.
| Goals | Frequency |
|---|---|
| 0 | 20 |
| 1 | 12 |
| 2 | xxx |
| 3 | 7 |
| 4 or more | 0 |
The team scored a total of 45 goals.
Find the value of xxx. Hence find the mean number of goals scored per game by the team.
111 exam-style questions on OCR GCSE Maths Averages from Frequency Tables. Each one has a worked solution and a mark scheme showing where the marks go.