Final answer:
To calculate the mean absolute deviation, find the mean of the set and then subtract the mean from each number to get the deviation. Take the absolute value of each deviation and find the mean of the absolute deviations.
Step-by-step explanation:
To calculate the mean absolute deviation of a set of numbers, you need to perform the following steps:
- Find the mean of the set by summing all the numbers and dividing by the total number of numbers.
- Subtract the mean from each number in the set to get the deviation.
- Take the absolute value of each deviation to ensure they are all positive.
- Find the mean of the absolute deviations by summing them up and dividing by the total number of numbers.
Let's calculate the mean absolute deviation for each set:
A. Set: 9.2
B. Set: 3.4
C. Set: 3
D. Set: 11.25