Find the mean deviation about the median for the data : `x_i`: 5 7 9 10 12 15. `f_i`: 8 6 2 2 2 6

Explanation

To find the mean deviation about the median for the given data, we will follow these steps:

### Step 1: Organize the Data
We have the data points \( x_i \) and their corresponding frequencies \( f_i \):
- \( x_i: 5, 7, 9, 10, 12, 15 \)
- \( f_i: 8, 6, 2, 2, 2, 6 \)

### Step 2: Calculate the Total Frequency
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