UPSKILL MATH PLUS
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Learn more Calculate the mean of the scores of \(20\) students in a mathematics test :
| Marks | \(10-20\) | \(20-30\) | \(30-40\) | \(40-50\) | \(50-60\) |
| Number of students | \(2\) | \(4\) | \(7\) | \(6\) | \(1\) |
Answer:
The mean is .
[Note: Enter the answer in to two decimal number.]
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