Q. Which of the following is not a measure of dispersion?

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Q. The peak of a curve is located at (4,4). Four students located the peak of the curve to be at (3,4), (5,4), (4,3), and (4,5). What can be the conclusion made by this study?

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Q. If the diameter of a shaft is measured as 80 mm, 81 mm, 82 mm, 83 mm, 84 mm. What is the median of the observed values?

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Q. If the diameter of a shaft is measured as 80 mm, 81 mm, 82 mm, 83 mm, 84 mm, 85 mm. What is the median of the observed values?

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Q. If the observed diameter of a shaft is 20 mm, 21 mm, 23 mm, 22.5 mm, 24 mm. What is the mode of the observed data?

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Q. The height of a tank measured by five engineers is 5 m, 4 m, 4.5 m , 4.5 m, 5 m. What is the mode of the calculated values?

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Q. Measures of precision are also known as ___________

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Q. For symmetrical distribution, mean=median=mode.

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Q. Given for an asymmetrical distribution, median=20, mean=22, what is the mode?

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Q. Find the range of the following observations:

1,2,4,7,8,13

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Q. What is the mean deviation from the mean of the following observation:

9,9,2,3,6,9,4

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Q. The square of the standard deviation is variance.

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Q. The standard deviation is 110 and the mean is 770. What is the coefficient of variation?

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Q. If the coefficient of variation of a data set A is 40 and for data set B it is 60, which data set is more consistent?

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Q. If the variance of the data 2, 4, 5, 6, 8, 17 is 23.33. Then, what is the variance of 4, 8, 10, 12, 16, 34?

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Q. A set of observations x₁, x₂, x₃, x₄, has a standard deviation = 6. Each of these observations is added with a constant k. What is the new standard deviation?

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Q. The collection of all the results of an operation can be called as __________ in statistics.

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Q. The subset of a population is known as ________

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Q. The process of sample selection in statistics is known as _______

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Q. Sampling can be used when it is impossible to measure the entire population.

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