UPSKILL MATH PLUS
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Learn moreThe following distribution shows the daily pocket allowance of children of a locality. The mean pocket allowance is \(Rs. 18\). Find the missing frequency \(f\).
| Daily pocket allowance (in ₹) | \(11-13\) | \(13-15\) | \(15-17\) | \(17-19\) | \(19-21\) | \(21-23\) | \(23-25\) |
| Number of children | \(7\) | \(6\) | \(9\) | \(13\) | \(f\) | \(5\) | \(4\) |
Missing frequence \(f\) \(=\)
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