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Given that barx Is the mean and sigma^2 ...

Given that `barx` Is the mean and `sigma^2` is the variance of n observations `x_1,x_2, x_3,………….x_n` prove that the mean and variance of the observations `ax_1,ax_2,ax_3,………ax_n` are `abarx` and `a^2sigma^2` respectively. `(ane0)`

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A N EXCEL PUBLICATION-STATISTICS-QUESTION BANK
  1. Consider the following data calculate the mean of the above data

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  2. The scores of batsman A are 40 ,70,52,34,42,55,63,46,54,44 find their ...

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  3. The scores of batsman A are 40 ,70,52,34,42,55,63,46,54,44 find their ...

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  4. The scores of batsman A are 40 ,70,52,34,42,55,63,46,54,44 Find their ...

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  5. The scores of batsman A are 40 ,70,52,34,42,55,63,46,54,44 find the st...

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  6. Given the following data find the mean of the given data.

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  7. Given the following data find the standard deviation of the given...

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  8. Consider the following grouped frequency distribution find the mea...

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  9. Consider the following grouped frequency distribution find the vari...

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  10. Consider the following grouped frequency distribution find the stan...

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  11. Consider the following grouped frequency distribution find the C.V...

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  12. If k is a negative constant , what is the relation between sigmau and ...

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  13. The mean and variance of 8 observations are 9 and 9.25 respectively. S...

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  14. The mean and variance of 7 observations are 8 and 16 respectively . If...

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  15. Suppose that mean and standard deviation of 6 observations are 8 and 4...

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  16. Given that barx Is the mean and sigma^2 is the variance of n observati...

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  17. The mean and S.D. of 20 observations are found to be 10 and 2 respecti...

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  18. The mean and S.D. of 20 observations are found to be 10 and 2 respecti...

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  19. The mean and S.D. of marks obtained by 50 students of a class in three...

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  20. The mean and S.D. of a group of 100 observations were found to be 20 a...

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