Answer:
Here is an example..:
Find the M.A.D of the set of data
10.2 , 9.4, 11.3, 12.9
( so, we just have to add up all numbers )
10.2 + 9.4 + 11.3 + 12.9 = 43.8
Then we divide them by 4, you might be wondering..why 4?
that's because there are about 4 numbers in the data set.
So:
43.8
____= 10.95 (we found the mean! :D)
4
After that, we just have to subtract the mean (10.95) to the same numbers (or the so called data set)
10.95 - 10.2 = 0.75
10.95 - 9.4 = 1.55
10.95 - 11.3 = 0.35
10.95 - 12.9 = 1.95
For our final step, we just add up all the difference, then, divide it by 4 again.
0.75 + 1.55 + 0.35 + 1.95 = 4.6
--------- = 1.15
4
~hope this helps, have a good day/afternoon/night~