Find the Mean of following data is n= 10,12, 20 25,35 f= 3, 10 ,15,7, 5
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Answer:10. 3. 30
12. 10. 120
20. 15. 300
25. 7. 175
35 5 175
Total of f = 40
Total of xf = 800
mean = total of fx / total of f
mean = 800/40
mean = 20
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