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Find the mean deviation from the mean of the following data: Classes:, 10-20, 20-30, 30-40, 40-50, 50-60, 60-70, 70-80 frequency, 2, 3, 8, 14, 8, 3, 2

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Find the mean deviation about the mean for the following data: Marks obtained , 10-20, 20-30, 30-40, 40-50, 50-60, 60-70, 70-80 Number of students, 2, 3, 8, 14, 8, 3, 2

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RD SHARMA ENGLISH-STATISTICS-All Questions
  1. Find the variance and standard deviation of the following frequency ...

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  2. Calculate the mean deviation from the median of the following data: Wa...

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  3. Find the mean deviation from the mean of the following data: Classes:,...

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  4. Find the mean deviation about the mean for the following data: Marks ...

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  5. The age distribution of 100 life-insurance policy holders is as follow...

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  6. Find the mean deviation from the mean for the following data: Size:, 2...

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  7. Find the mean deviation from the mean for the following data: Size:...

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  8. Find the mean deviation from the median for the following data: Size:,...

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  9. Find the mean deviation about the median of the following frequency di...

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  10. Calculate the mean and standard deviation for the following table give...

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  11. The lengths (in cm) of 10 rods in a shop are given below: 40.0,52.3,55...

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  12. The mean and variance of 7 observations are 8 and 16, respectively....

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  13. An analysis of monthly  wages paid to workers in two firms A and B, ...

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  14. From the data given below state which group is more variable G1orG2? ...

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  15. From the prices of shares X and Y below, find out which is more stab...

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  16. If two variates Xa n dY are connected by the relation Y=(a X+b)/c ,w h...

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  17. Calculate the variance and standard deviation from the data given b...

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  18. Find the variance and standard deviation for the following distribu...

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  19. Calculate the mean deviation about the median of the following obse...

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  20. The scores of a batsman in ten innings are : 38,70,48,34,42,55,63,46,5...

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