MCQ Measures of Dispersion Chapter 6 Class 11 Economics –1 Advertisement 1. Which is the relative measure of dispersion?(a) Range (b) Mean deviation (c) Coefficient of standard deviation (d) None of theseQuestion 1 of 202. Which of the following is a unitless measure of dispersion?(a) Standard deviation (b) Mean deviation (c) Coefficient of variation (d) RangeQuestion 2 of 203. If the first quartile is 104 and quartile deviation is 8, the third quartile is:(a) 130 (b) 120 (c) 136 (d) 146Question 3 of 204. If all the observations are multiplied by 5, then(a) New S.D. would be also multiplied by 5 (b) New S.D. would be increased by 5 (c) New S.D. would be half of the previous S.D (d) New S.D. would be decreased by 5Question 4 of 205. Which of the following formulae is used to find out inter quartile range?(a) a1−Q3 /2(b) Q1+Q3 /2(c) Q3 − Q1(d) Q3 + Q1Question 5 of 206. Coefficient of variation is a percentage expression of:(a) mean deviation (b)quartile deviation (c) standard deviation (d)none of theseQuestion 6 of 207. Which of these is the merit of standard deviation?(a) Standard deviation is based on all values of the series (b) Standard deviation shows little effect of changes in the sample (c) In the estimation of standard deviation, more importance is given to difficult and extreme value (d) Both (a) and (b)Question 7 of 208. Standard Deviation is(a) Absolute measure (b) Relative measure (c) Both (a) and (b) (d) None of theseQuestion 8 of 209. In the calculation of standard deviation, deviations are taken only from the value of the series.(a) mean (b) mode (c) median (d) quartileQuestion 9 of 2010. Which of the following equations is correct?(a) Variance = σ (b) Variance = σ2 (c) Variance = σ4 d) Variance = √σ×2Question 10 of 2011. The standard deviation of a set of 50 observations is 8. If each observation is multiplied by 2, then the new value of standard deviation will be:(a) 4(b) 8(c) 16 (d) none of the aboveQuestion 11 of 2012. Which measures of dispersion is the quickest to compute?(a) Mean deviation(b) Quartile deviation(c) Standard deviation(d) RangeQuestion 12 of 2013. Which one is difficult to compute?(a) Relative measures of dispersion (b) Absolute measures of dispersion (c) Both (a) and (b)(d) RangeQuestion 13 of 2014. The most commonly used measure of dispersion is(a) Coefficient of variation (b) Standard deviation (c) Range (d) Quartile deviationQuestion 14 of 2015. Mean deviation can be calculated by using:(a) mean (b)mode (c) median (d) all of theseQuestion 15 of 2016. “Root-Mean Square Deviation from Mean” is(a) Standard deviation (b) Quartile deviation (c) Both (a) and (b) (d) None of theseQuestion 16 of 2017. The measure of dispersion which ignores signs of the deviations from a central value is:(a) Quartile deviation (b) Range (c) Standard deviation (d) Mean deviationQuestion 17 of 2018. Which of the following is not a measure of dispersion?(a) Variance (b) Mean deviation (c) Standard deviation (d) ModeQuestion 18 of 2019. The standard deviation of 25 numbers is 40. If each of the numbers is increased by 5, then the new standard deviation will be:(a) 40 (b) 45 (c) 41.5 (d) None of theseQuestion 19 of 2020. The standard deviation of a set of 50 observations is 6.5. If value of each observation is increased by 5, then the standard deviation is:(a) 2.5 (b) 6.5 (c) 3.5 (d) none of the aboveQuestion 20 of 20 Loading...
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