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If bar x is the mean and Mean Deviation ...

If `bar x` is the mean and Mean Deviation from mean is `MD (bar x)`, then find the number of observations lying between `bar x- MD (bar x)` and `bar x+ MD (bar x)` from the following data : 22, 24, 30, 27, 29, 31, 25, 28, 41, 42.

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MODERN PUBLICATION-STATISTICS-EXERCISE
  1. Find the mean deviation from the mean for the following data :

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  2. If bar x is the mean and Mean Deviation from mean is MD (bar x), then ...

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  3. If bar x is the mean and Mean Deviation from mean is MD (bar x), then ...

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  4. Find the mean deviation from the median for the following data : 9, 1...

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  5. Find the mean deviation from the median for the following data : 10, ...

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  6. Find the mean deviation from the median for the following data : 13,1...

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  7. Find the mean deviation from the mean for the following data : 36, 72,...

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  8. Find the mean deviation from the median for the following data : 38,7...

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  9. Find the mean deviation from the median for the following data :

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  10. Find the mean deviation from the median for the following data :

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  11. Find the mean deviation from the median for the following data :

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  12. The lengths (in cm.) of 10 rods in a shop are as below : 42.0,52.3,55...

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  13. The lengths (in cm.) of 10 rods in a shop are as below : 42.0,52.3,55...

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  14. Calculate the mean deviation about median age for the age distribution...

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  15. Find the mean deviation about the median for the following data :

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  16. Find the mean deviation about the median for the following data :

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  17. Find the mean deviation about the median for the following data :

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  18. Given that bar x is the mean and sigma^2 is the variance of n observat...

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  19. Prove that identity : sum(i=1)^(n) (xi-bar x)^2 = sum(i=1)^(n) xi^2-n ...

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  20. Find the mean and variance for the following data : 2, 4,5, 6, 8, 17...

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