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The number of telephone calls received a...

The number of telephone calls received at an exchange in 245 successive one-minute intervals are shown in the following frequency distribution: Number of calls, 0, 1, 2, 3, 4, 5, 6, 7 Frequency, 14, 21, 25, 43, 51, 40, 39, 12 Calculate mean deviation about Median.

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  1. While calculating mean and variance of 10 readings, a student wrong...

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  2. Mean  and standard deviation of 100 observations were found to be 4...

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  3. The number of telephone calls received at an exchange in 245 successiv...

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

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  5. Find the variance and standard deviation for the following data: 4,6,1...

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

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

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

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

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

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

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

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  13. The mean deviation from e median is a.equal to that measured from anot...

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

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

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  16. Life of bulbs produced by two factories A and B are given below: Lengt...

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

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  18. If the men and standards deviation of 100 observations are 50 and 4 ...

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

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  20. The mean and standard deviation of 20 observations are found to be ...

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