Calculate arithmetic mean from the following data.
Marks: Below 20 30 40 50 60 70 80 90 100
No. of students 10 18 25 32 43 61 67 85 100
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20*10+30*18+40*25........
10+18+25+32+.................
solve this it is your answer
mishete45pdxyp1234:
thanks for thanking
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