Calculate the median deviation from the median of the following data: Wages per week (in Rs.), 10-20, 20-30, 30-40, 40-50, 50-60, 60-70, 70-80 No. of workers, 4, 6, 10, 20, 10, 6, 4

Explanation

To calculate the median deviation from the median of the given data, follow these steps:

### Step 1: Create a frequency distribution table
We have the following data:

| Wages per week (in Rs.) | No. of workers (Frequency) |
|--------------------------|---------------------------|
| 10-20 | 4 |
...