1.A measure of dispersion is always A) Zero B) Positive✔ C) Negative D) Infinity 2.Which of these is a relative measure of dispersion A) Standard Deviation B) Variance C) Coficient of Variation✔ D) None of these 3.The measure of dispersion is changed by a change of A) Origin B) Scale✔ C) Algebraic Signs D) None 4.Mean Deviation, Variance and Stand-ard Deviation of thevalues 4, 4, 4, 4, 4, 4 is A) 4 B) 8 C) 2 D)0✔ 5.The mean deviation of the values, 18, 12, 15 is A) 6 B) 0 C) 3 D) 2✔ 6.The sum of squares of deviation is least if measure from A) Mean✔ B) Mode C) Median D) Variance 7.The sum of squared deviations of a set of n values from their mean is A) Zero B) Maximum C) Least✔ D) None 8.Variance is always calculated from A) Mean✔ B) Variance C) Geometric Mean D) Median 9.Lowest value of variance can be A) 0✔ B) -1 C) 3 D) -3 10.The variance of a constant is A) Zero✔ B) Constant C) Normal D) None 11.Va...
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