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Calculate the mean and standard deviation for the following data: Wages upto (into Rs.), 15, 30, 45, 60, 75, 90, 105, 120 No. of workers, 12, 30, 65, 107, 157, 202, 222, 230

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To calculate the mean and standard deviation for the given data, we will follow these steps: ### Step 1: Create a Frequency Table We need to organize the data into a frequency table with two columns: Wages (x) and Number of Workers (f). | Wages (x) | No. of Workers (f) | |-----------|---------------------| | 15 | 12 | ...
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RD SHARMA-STATISTICS-Solved Examples And Exercises
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  2. Calculate mean deviation about mean from the following data: xi : 3,9,...

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  3. Calculate the mean and standard deviation for the following data: Wage...

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

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

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  9. Complete the variance and standard deviation of the following obser...

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  10. Calculate the mean deviation about the mean of the set of first n natu...

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

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  12. Find the mean deviation from the mean for the data: 6,7,10,12,13,4,8...

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  13. The scores of a batsman in ten innings are : 38,70,48,34,42,55,63,46,5...

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  14. Calculate the mean deviation about median from the following data: 340...

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  15. For a group of 200 candidates the mean and S.D. were found to be 40 an...

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  16. Calculate the mean deviation about the mean of the set of first n natu...

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

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

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  19. If the mean and standards deviation of 100 observations are 50 and 4 ...

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  20. Find the standard deviation for the following data: (i) x : 3,8, 13, ...

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