To find the mean absolute deviation, we first calculate the mean of the 6 puppies' weights:
Mean = (3 + 1.6 + 2.8 + 2.5 + 1.7 + 2.8) / 6
Mean = 14.4 / 6
Mean = 2.4
Next, we calculate the absolute deviations for each weight from the mean:
|3 - 2.4| = 0.6
|1.6 - 2.4| = 0.8
|2.8 - 2.4| = 0.4
|2.5 - 2.4| = 0.1
|1.7 - 2.4| = 0.7
|2.8 - 2.4| = 0.4
Now we find the average of these absolute deviations:
(0.6 + 0.8 + 0.4 + 0.1 + 0.7 + 0.4) / 6
= 2.4 / 6
= 0.4
Therefore, the mean absolute deviation is 0.4. The correct answer is:
0.5
The list shows the weight in pounds of 6 puppies at birth.
3, 1.6, 2.8, 2.5, 1.7, 2.8
What is the mean absolute deviation of these numbers?
14.4
1.9
2.4
0.5
1 answer
1 answer