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Calculate the mean deviation about the m...

Calculate the mean deviation about the mean of the set of first `n` natural numbers when `n` is even natural number.

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RD SHARMA ENGLISH-STATISTICS-All Questions
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  5. Find the variance and standard deviation of the following data 5,12,3,...

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  6. Compute the variance and standard deviation of the following observa...

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  7. The number of telephone calls received at an exchange in 245 successiv...

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

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  9. The mean deviation for n observations x1, x2, ......... , xn from th...

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  10. Let x1,""x2,"". . . . . . ,""xn be n observations, and let bar x be t...

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  11. The scores of a batsman in 10 matches were as follows: 38,70,48,34,...

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  12. The mean and variance of 7 observation is 8 and 16. If five of the obs...

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  13. If for a sample of size 60, we have the following information sumxi^2=...

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

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  15. Consider the numbers 1,2,3,4,5,6,7,8,9,10. If 1 is added to each num...

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

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  17. If the men and standards deviation of 100 observations are 50 and 4 ...

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

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  19. If two variates X a n d Y are connected by the relation Y=(a X+b)/c ,w...

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

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