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The scores of batsman A were : 48, 80, 5...

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

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The weights (in kg) of 30 students of a class are 49, 48, 46, 48, 48, 50, 52, 53, 54, 43, 43, 41, 43, 55, 56, 48, 47, 41, 40, 49, 51, 51, 56, 46, 45, 44, 49, 53, 42 and 47. Prepare a frequency table for the above data and answer the following questions : Find the number of students having the maximum weight in the above data.

The weights (in kg) of 30 students of a class are 49, 48, 46, 48, 48, 50, 52, 53, 54, 43, 43, 41, 43, 55, 56, 48, 47, 41, 40, 49, 51, 51, 56, 46, 45, 44, 49, 53, 42 and 47. Prepare a frequency table for the above data and answer the following questions : Find the number of students having the least weight in the above data.

The weights (in kg) of 30 students of a class are 49, 48, 46, 48, 48, 50, 52, 53, 54, 43, 43, 41, 43, 55, 56, 48, 47, 41, 40, 49, 51, 51, 56, 46, 45, 44, 49, 53, 42 and 47. Prepare a frequency table for the above data and answer the following questions : What is the least weight ?

MODERN PUBLICATION-STATISTICS-EXERCISE
  1. Find the mean and variance for the following data : First 10 multipl...

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

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

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

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  5. Find the Standard Deviation of the following data :

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  6. Find the mean and standard deviation for 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. The scores of 10 students in a test, in which the maximum marks Were 5...

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

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

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

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

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

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

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

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

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

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  19. Calculate the standard deviation of the following distribution :

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  20. Calculate the mean and standard deviation for the following distributi...

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