Statistics Ics Part 1 Chapter 4 Online Test With Answers

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Statistics Ics Part 1 Chapter 4 Online Test

Sr. # Questions Answers Choice
1 A disadvantage of range is that it is based on. Absolute deviation Square deviation Two extreme observation Upper and quartile
2 In symmetrical distribution if Q1 = 4, Q3 = 12 then median is. 4 6 8 zero
3 The variance of 5,5,5,5,5 is. 0 25 5 125
4 Second moment abut mean is. 0 1 variance Standard deviation
5 For a symmetrical distribution. B1 = 0 B1 = 3 B2 = 3 B3 = 3
6 The types of dispersion are. 2 3 4 5
7 Which of the following statements is correct. Every symmetrical curve is measokurtic Standard deviation is the mean squared deviations from the mean The standard deviation of a constant is constant Teh second moment about zero equals variance.
8 Mean deviationis always. More than S.D. Equal to S.D. Less than S.D. None of these
9 The sum of squares of deviations is a minimum if these deviations are taken from the. Mean Mode Median All of these
10 Moment ratios b1 and are. Expressed in original unit of the data Dimensionless quantities Independent of origin and scale of messurement Both b and c
11 The distribution is positively skewed if. Mean < Mode Mean > Mode Mean > Median Both b and c
12 The distribution is measokurtic if the moment coefficient of of kurtosis b2 is. Equal to 0 Equal to 3 Less than 3 Greater than zero
13 The distribution is symmetrical if the moment coefficient of skewense b1 is. Negative Postive 3 0
14 The compare the variation of two or more than two sereies, we use. Mean absolute deviation Variance Coefficient of viariation Corrected atandard deviation
15 Which measure of disperesion is considered as the best genereal purpose measure of dispersion. Range Semi interquartile range Standard deviation Mean deviation
16 If the third moment about mean is zero ( m3 = 0) , then the distribution is. Mesokurtic Positively skewed Symmetrical Negatively skewed
17 The mean deviation is least if deviations are taken from A.M Mode G.M Median
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