Calculate the median from the following data: Marks:                0-10         10-30                           30-60       60-80                           80-90 No. of Students  5              15                           30            8                           2

Explanation

To calculate the median from the given data, we will follow these steps:

### Step 1: Create a Frequency Table
We will organize the data into a frequency table with cumulative frequencies.

| Marks Range | Frequency (f) | Cumulative Frequency (CF) |
|-------------|---------------|---------------------------|
| 0 - 10 | 5 | 5 |
...