Calculate mean deviation from the median for the following distribution: `x_i :` , 10, 15, 20, 25, 30, 35, 40, 45 `f_i :` , 7, 3, 8, 5, 6, 8, 4, 9

Explanation

To calculate the mean deviation from the median for the given distribution, we will follow these steps:

### Step 1: Create a Frequency Table
We need to create a table that includes the values \( x_i \), their corresponding frequencies \( f_i \), and the cumulative frequency \( c_f \).

| \( x_i \) | \( f_i \) | \( c_f \) |
|-----------|-----------|-----------|
| 10 | 7 | 7 |
...