Find the mean deviation about the median for the data : `13 , 17 , 16 , 14 , 11 , 13 , 10 , 16 , 11 , 18 , 12 , 17`

Explanation

To find the mean deviation about the median for the given data set \( 13, 17, 16, 14, 11, 13, 10, 16, 11, 18, 12, 17 \), we will follow these steps:

### Step 1: Arrange the data in ascending order
First, we need to sort the data:
- Sorted data: \( 10, 11, 11, 12, 13, 13, 14, 16, 16, 17, 17, 18 \)

### Step 2: Find the median
Since the number of observations \( n = 12 \) (which is even), the median is calculated as the average of the \( \frac{n}{2} \)th term and the \( \frac{n}{2} + 1 \)th term.
...