Mean absolute deviation — Grade 6 Math, what it means and where it is taught
The average distance of the values from the mean.
Taught in Grade 6 Math.
Where it is taught
What it rests on
Work through these first if this one does not settle.
- Mean — Two kinds of centre: the balance point, and the middle value.
Practise this idea
3 questions in the course bank use Mean absolute deviation, in Sampling, Inferences & Comparing Populations, Centre & Spread.
Problem 1
Find the mean absolute deviation of 4, 8, 10, 14.
Worked answer
3
Distances from 9: 5, 1, 1, 5
5 + 1 + 1 + 5 = 12
12 ÷ 4 = 3
Problem 2
Find the mean absolute deviation of 4, 8, 10, 14.
Worked answer
3
Mean 9
Distances 5,1,1,5
12 ÷ 4 = 3
Problem 3
Find the mean absolute deviation of 2, 4, 6, 8.
Worked answer
2
Distances 3,1,1,3
8 ÷ 4 = 2