1
Step-by-step explanation:
Here are the steps
1 Find the mean of the data set
2 Subtract the mean from each value ( ignore the minus signs ), that is the distance of each value from the mean
3. Find the mean of 2
mean = = = 7
value distance
9 | 9 - 7 | = 2
7 | 7 - 7 | = 0
6 | 6 - 7 | = 1
8 | 8 - 7 | = 1
7 | 7 - 7 | = 0
5 | 5 - 7 | = 2
Find the mean of these values
mean absolute deviation = = 1