Measures of Dispersion MCQ Multiple Choice Questions - Page 5 for Practice

Measures of Dispersion MCQ Questions for Practice

61. Mean deviation computed from a set of data is always:

62. The average of squared deviations from mean is called:

63. The sum of squares of the deviations is minimum, when deviations are taken from:

64. Which of the following measures of dispersion is expressed in the same units as the units of observation?

65. Which measure of dispersion has a different unit other than the unit of measurement of values:

66. Which of the following is a unit free quantity:

67. If the dispersion is small, the standard deviation is:

68. The value of standard deviation changes by a change of:

69. The standard deviation one distribution dividedly the mean of the distribution and expressing in percentage is called:

70. The positive square root of the mean of the squares of the cleviations of observations from their mean is called:

71. The variance is zero only if all observations are the:

72. The standard deviation is independent of:

73. If there are ten values each equal to 10, then standard deviation of these values is:

74. S.D(X) = 6 and S.D(Y) = 8. If X and Yare independent random variables, then S.D(X-Y) is:

75. For two independent variables X and Y if S.D(X) = 1 and S.D(Y) = 3, then Var(3X - Y) is equal to:

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