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The range of the values 5 8 10 0 6 10 is a 0 b 10 c

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62.The range of the values -5, -8, -10, 0, 6, 10 is:A.0B.10C.-10D.20Correct answer: (D)View answer20
63.Themeandeviationisminimumwhendeviationsaretakenfrom:View answer
664.The sum of squares of the deviations is minimum, when deviationsare taken from:View answer
65.Thevalueofstandarddeviationchangesbyachangeof:
C.Algebraic signsD.NoneView answer
66.For two independent variables X and Y if S.D(X) = 1 and S.D(Y) = 3,then Var(3X - Y) is equal to:A.0B.6C.18D.12View answerCorrect answer: (C)18
67.Whichofthefollowingstatementsisfalse?View answer
68.The mean of an examination is 69, the median is 68, the mode is 67,and the standard deviation is 3. The measures of variation for thisexamination is:3
69.If X̄= Rs.20, S= Rs.10, then coefficient of variation is:
70.The secondmomentdeviation willabout arithmetic meanis16, thestandardA.16B.4C.2D.0Correct answer: (B)4View answer
71.First two moments about the value 2 of a variable are 1 and 16. Thevariance will be:
1572.Departurefromsymmetryiscalled:View answer

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