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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Q. The Gaussian curve is also known as ______

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Q. If the standard deviation is zero, what comment can we make on the type of normal curve formed?

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Q. There are two normal curves with the same mean value. The standard deviation of curve 1 is more than curve 2, what can we comment on the two normal curves?

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Q. ‘Parameter’ is a true population estimated by a ‘statistic’ and is often unknown.

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Q. Numerical data measured directly from a sample is known as _______

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Q. Which of the following is not a type of sampling technique?

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Q. ‘Random causes of variations’ in any manufacturing process are inevitable.

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Q. Which of the following is not a factor that affects the occurrence of ‘random causes of variation’ in any manufacturing process?

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