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Find the mean from the following frequen...

Find the mean from the following frequency distribution of marks at a test in statistics: Marks `(x)` : 5 10 15 20 25 30 35 40 45 50 No. of students `(f)` : 15 50 80 76 72 45 39 9 8 6

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RD SHARMA ENGLISH-STATISTICS-All Questions
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  9. Find the mean of the following frequency distributions: Class:        ...

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  13. Find the mean of the following frequency distributions: Class i n terv...

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  14. Find the mean of the following frequency distributions: Class i n t er...

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  15. Find the mean of the following frequency distributions: Class i nterva...

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  16. Find the mean of the following frequency distributions: Class interval...

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  17. For the following distribution, calculate the mean using all suitable ...

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  18. The weekly observations on cost of living index in a certain city for ...

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