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Find the variance and standard deviation for the following data:

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RD SHARMA-STATISTICS-Solved Examples And Exercises
  1. Mean  and standard deviation of 100 observations were found to be 4...

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  2. Calculate mean deviation from the median for the following distribu...

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  3. Find the variance and standard deviation for the following data:

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  4. Complete the variance and standard deviation of the following obser...

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  5. Calculate the mean deviation about the mean of the set of first n natu...

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  6. Let x1, x2, x3, , be n values of a variable X. If these values are ch...

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  7. Find the mean deviation from the mean for the data: 6,7,10,12,13,4,8...

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

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  9. Calculate the mean deviation about median from the following data: 340...

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  10. For a group of 200 candidates the mean and S.D. were found to be 40 an...

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  11. Calculate the mean deviation about the mean of the set of first n natu...

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  12. Let x1,\ x2,\....,\ xn values of variable X and let 'a' be non zero re...

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  13. If for distribution of 18 observations sum(xi-5)=3a n dsum(xi-5)^2=43 ...

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  14. If the mean and standards deviation of 100 observations are 50 and 4 ...

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  15. Find the standard deviation for the following data: (i) x : 3,8, 13, ...

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  16. The mean and standard deviation of 20 observations are found to be ...

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  17. For a frequency distribution mean deviation from mean in computed by ...

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  18. Calculate the mean and standard deviation for the following distrib...

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  19. Let a, b, c, d, e, be the observations with m and standard deviation s...

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  20. If n=10 , X =12 and sum x^{2}=1530 then the coefficient of variation ...

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