Formula AD = ∑|X-mean|)/N
Data:
(X) |
X-mean |
|X- mean| |
17.5 27 16 17 28 27.5 16.5 16.5 6 26 18.5 20 25 21 27 23 22.5 20.5 25 21 27 27.5 |
Solution:
mean = sum of all observation / total number of observation
therefore
mean | 21.6363 |
AD = ∑|X-mean|)/N | 4.3182 |
N : Total number of observation.
(X) | X-mean | |X- mean| |
17.5 | -4.1364 | 4.1364 |
27 | 5.36364 | 5.3636 |
16 | -5.6364 | 5.6364 |
17 | -4.6364 | 4.6364 |
28 | 6.36364 | 6.3636 |
27.5 | 5.86364 | 5.8636 |
16.5 | -5.1364 | 5.1364 |
16.5 | -5.1364 | 5.1364 |
6 | -15.636 | 15.636 |
26 | 4.36364 | 4.3636 |
18.5 | -3.1364 | 3.1364 |
20 | -1.6364 | 1.6364 |
25 | 3.36364 | 3.3636 |
21 | -0.6364 | 0.6364 |
27 | 5.36364 | 5.3636 |
23 | 1.36364 | 1.3636 |
22.5 | 0.86364 | 0.8636 |
20.5 | -1.1364 | 1.1364 |
25 | 3.36364 | 3.3636 |
21 | -0.6364 | 0.6364 |
27 | 5.36364 | 5.3636 |
27.5 | 5.86364 | 5.8636 |
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