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The following table gives the number of ...

The following table gives the number of finished articles turned out per day be different number of workers in a factors. Find the standard deviation of the daily output of finished articles. Find the variance and standard deviation of the following frequency distribution: Number of article:, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 No. of workers:, 3, 7, 11, 14, 18, 17, 13, 8, 5, 4

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RD SHARMA ENGLISH-STATISTICS-All Questions
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  2. Find the mean deviation from the mean for the following data: Size:...

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  3. The following table gives the number of finished articles turned out ...

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  4. If a is positive integer and the frequency distribution: x : , A, 2a, ...

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  5. There are 60 students in a class. The following is the frequency dis...

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  6. Find the mean, and standard deviation for the following data: (i) Y...

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  7. Find the mean and standard deviation of first n terms of an A.P. whose...

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  8. Find the mean of the following frequency distribution: Variable (xi)...

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  9. Calculate the variance and standard deviation from the data given b...

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  10. Find the variance and standard deviation for the following distribu...

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

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  12. Calculate the mean and standard deviation for the following distrib...

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  13. Let x1, x2, ,xn be xn observations. Let yi=a xi+b for i=1,2,...,n wher...

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  14. For a frequency distribution standard deviation is computed by applyin...

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  15. The mean of 100 numbers observations is 50 and their standards devia...

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  16. If n=10 , X =12 and sumx(i)^2=1530 , then the coefficient of variati...

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  17. Life of bulbs produced by two factories A and B are given below: Le...

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  18. If the standard deviation of a variable X \ is \ sigma , then standard...

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  19. Following are the marks obtained, out of 100, by two students Ravi and...

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  20. Let a, b, c, d, e, be the observations with m and standard deviation s...

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