First, we need to find the mean of the dataset:
Mean = (109 + 89 + 112 + 98 + 101 + 105 + 120 + 106) / 8
Mean = 840 / 8
Mean = 105
Next, we find the absolute deviation of each data point from the mean:
|109 - 105| = 4
|89 - 105| = 16
|112 - 105| = 7
|98 - 105| = 7
|101 - 105| = 4
|105 - 105| = 0
|120 - 105| = 15
|106 - 105| = 1
Now, we find the mean absolute deviation by taking the average of these absolute deviations:
(4 + 16 + 7 + 7 + 4 + 0 + 15 + 1) / 8
= 54 / 8
= 6.75
Therefore, the mean absolute deviation of the dataset is 6.8.
The number of words Mr. Ahmad's students read per minute is 109, 89, 112, 98, 101,
105, 120, 106. What is the mean absolute deviation of the dataset? Round the
answer to the nearest tenth. (1 point)
1 answer