Question

Find the missing frequency for the given data if mean of distribution is 52.




Wages (In Rs.)



10 - 20



20 - 30



30 - 40



40 - 50



50 - 60



60 - 70



70 - 80





No. of workers



5



3



4



f



2



6



13




OR

Find the mean of following distribution by step deviation method.




Daily Expenditure :



100 - 150



150 - 200



200- 250



250 - 300



300- 350





No. of householders :



4



5



12



2



2

Answer 1

f is equals to7 okkkk

Answer 2

Answer:

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