UPSKILL MATH PLUS
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Learn moreCalculate the mean of the following data :
| Class | \(4-7\) | \(8 -11\) | \(12-15\) | \(16-19\) |
| Frequency | \(5\) | \(4\) | \(9\) | \(10\) |
Answer:
The mean is .
[Note: Enter the answer in to two decimal number.]
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