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Calculate arithmetic mean of the following frequency distribution: Class less than 10 10−20 20−30 30−40 40−50 50−60 more than 60 Frequency 5 12 18 22 6 4 3

Answer» Calculate arithmetic mean of the following frequency distribution:























Class less than 10 10−20 20−30 30−40 40−50 50−60 more than 60
Frequency 5 12 18 22 6 4 3


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