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Arithmetic Mean - Missing Frequency - Problem Solving
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Q. Find the missing frequency from the following data.
Marks : 0-10 10-20 20-30 30-40 40-50 50-60
No. of students: 5 15 20 ? 20 10
The arithmetic mean is 34 marks.
Marks : 0-10 10-20 20-30 30-40 40-50 50-60
No. of students: 5 15 20 ? 20 10
The arithmetic mean is 34 marks.
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