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Find the variance and standard deviation...

Find the variance and standard deviation for the following data :
65, 58, 68, 44, 48, 45, 60, 62, 60, 50.

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MODERN PUBLICATION-STATISTICS-EXERCISE
  1. Find the mean and variance for the following data: first n natural num...

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  2. Find the mean and variance for the following data : First 10 multipl...

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  3. Find the variance and standard deviation for the following data : 65...

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  4. The scores of batsman A were : 48, 80, 58, 44, 52, 65, 73, 56, 64, 54....

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  5. The scores of batsman A were : 28, 60, 38, 24, 32, 45, 53, 36, 44, 34....

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  6. Find the Standard Deviation of the following data :

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  7. Find the mean and standard deviation for the following data :

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  8. Find the mean and standard deviation for the following data :

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  9. Find the mean and standard deviation for the following data :

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  10. The scores of 10 students in a test, in which the maximum marks Were 5...

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  11. Later on the maximum marks were increased to 100, and accordingly each...

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  12. The scores of 48 children in an intelligence test are shown in the fol...

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  13. A sample of 25 variates has mean 40 and standand deviation 5 and a sec...

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  14. The mean of 5 observation is 4.4 and their variance is 8.24. If three ...

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

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  16. The mean and standard deviation of 6 observations are 8 and 4, respect...

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  17. Calculate the standard deviation of the following frequency distributi...

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  18. Calculate the standard deviation of the following frequency distributi...

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  19. Following is the distribution of the number of out-door patients regis...

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  20. Calculate the standard deviation of the following distribution :

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