Week 1: the mean would be 6.57
Week 2: the mean would be 8.85
Week 3: the mean would be 2.28
Week 4: the mean would be 8
To find the mean (or average) all you need to do is add each of the number sets together, then divide by the amount of numbers in the set.
Example: 9+7+8+8+11+6+7=56. 56 ÷ 7 (because there are 7 numbers) = 8. So for week 4, 8 would be the mean.
I hope this answers your question!
