The frequency table shows the numbers of goals scored by a football team. Work out the

mean number of goals scored per match. Give your answer correct to 1 decimal place.

This is not correct.
To find the mean we divide the total number of goals by the total number of matches.
Total number of goals = 4 × 0 + 6 × 1 + 11 × 2 + 12 × 3 + 5 × 4 + 2 × 5 + 0 × 6 + 1 × 7
= 0 + 6 + 22 + 36 + 20 + 10 + 0 + 7
= 101
Total number of matches = 4 + 6 + 11 + 12 + 5 + 2 + 0 + 1 = 41
So mean = 101 ÷ 41
= 2.5 (to 1 decimal place)