The answer is 2.4. This is because when you are finding the Mean Absolute Deviation, you have to first find the mean (the sum of all the numbers divided by how many numbers there are) Then, you have to find the absolute value of the difference between every single data value and the mean. |data value - mean| After you do that, you find the sum of all the absolute values. Finally you divide the sum by the number of data values.
