The distribution below shows the number of wickets taken by bowlers in one-day cricket matches. Find the mean number of wickets by choosing a suitable method. What does the mean signify?

Explanation

To find the mean number of wickets taken by bowlers in one-day cricket matches using the step deviation method, we will follow these steps:

### Step 1: Organize the Data
We have the following intervals and the corresponding number of bowlers:
- 20-60: 7 bowlers
- 60-100: 5 bowlers
- 100-150: 16 bowlers
- 150-250: 12 bowlers
...