Question

Find the mean absolute deviation of the following dataset: 8.4, 9.4, 14.2, 5.6, 8.3, 9.0, 10.2. Round the answer to the nearest tenth.(1 point)
Responses

9.3
9.3

1.7
1.7

11.8
11.8

7.0

Answer 1

Mean = (8.4+9.4+14.2+5.6+8.3+9.0+10.2)/7 = 65.1/7 = 9.3.
Absolute deviations: 0.9, 0.1, 4.9, 3.7, 1.0, 0.3, 0.9 (sum = 11.8).
MAD = 11.8/7 ≈ 1.6857 → 1.7 (to the nearest tenth).