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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?
Number of wickets | \(20-60\) | \(60-100\) | \(100-150\) | \(150-250\) | \(250-350\) | \(350-450\) |
Number of bowlers | \(7\) | \(5\) | \(16\) | \(12\) | \(2\) | \(3\) |
Mean \(=\)
[Note: Round off the answer to two decimal places]