Question

A data set is made up of the values 5, 6, 9, 12, and 18.

The table shows the distance between each value and the mean of 10.

Answer 1

A. 4

Explanation:

To find the Mean Absolute Deviation (MAD) of a data, the following steps are usually taken:

1. Find the mean

2. Find the distance between each data value and the mean

3. Find the sum of the distances

4. Divide the sum of the distances by the number of data value given

Step 1 to 3 has been solved already from the table given.

The sum of the distances = 20

number of data value = 5

Therefore,

MAD = 20/5 = 4