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Find the coefficient of variation for th...

Find the coefficient of variation for the following data: Size (in cms) 10-15 15-20 20-25 25-30 30-35 35-40 No. of items 2 8 20 35 20 15

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RD SHARMA ENGLISH-STATISTICS-All Questions
  1. An analysis of monthly wages paid to workers in two firms A and B, bel...

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  2. The following values are calculated in respect  of heights and weights...

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  3. If the heights of 5 persons are 140 cm, 150cm,158cm, 152 cm and 161 cm...

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  4. The sum and sum of squares corresponding to length x (in cm) and weigh...

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  5. Two plants A and B of a factory show following results about the numbe...

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  6. find the mean salary of 60 workers of a factory from the given table

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  7. The means and standard deviations of heights ans weights of 50 student...

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  8. The means and standard deviations of heights ans weights of 50 student...

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  9. Coefficient of variation of two distributions are 60% and 70% and thei...

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  10. Calculate coefficient of variation from the following data: Income ...

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  11. An analysis of the weekly wages paid to workers in two firms A and B, ...

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

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  13. The mean and standard deviation of marks obtained by 50 students of a ...

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  14. Find the coefficient of variation for the following data: Size (in ...

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  15. The variance of first n natural number is:

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  16. If the sum of the squares of deviations for 10 observations taken from...

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  17. If x1, x2, ,\ xn are n values of a variable X\ a n d\ y1, y2, ......,...

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  18. In a series of 20 observations, 10 observation each equal to k and eac...

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  19. If each observation of a dist., whose variance is σ^2 , is multiplied ...

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  20. If a variable X takes values of 0,1,2, .... n with frequencies \ \ ^n ...

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