MCQ Class 11 Economics Chapter 6 Measures of Dispersion Advertisement Statistics for EconomicsMCQ’s For All Chapters – Economics Class 11th 1. When the relation of three or more variables is studied simultaneously, it is called:(a) simple correlation (b) partial correlation (c) multiple correlation (d) none of theseQuestion 1 of 202. When coefficient of correlation lies between +0.25 and + 0.75, it is called:(a) perfect degree of correlation (b) high degree of correlation (c) moderate degree of correlation (d) low degree of correlationQuestion 2 of 203. Coefficient of correlation lies always between:(a) 0 and +1 (b) -1 and 0 (c)-1 and+1 (d) none of theseQuestion 3 of 204. Rank correlation is a superior method of analysis in case of ____ distribution.(a) qualitative (b) quantitative (c) frequency (d) none of theseQuestion 4 of 205. When two variables change in a constant proportion, it is called:(a) linear correlation (b) non-linear correlation (c) partial correlation (d) none of theseQuestion 5 of 206. A scatter diagram:(a) Is a statistical test (b) Must be linear (c) Must be curvilinear (d) Is a graph of x and y valuesQuestion 6 of 207. Maximum value of rank correlation coefficient is:(a) 0 (b) +1 (c) -1 (d) None of theseQuestion 7 of 208. The correlation coefficient will be -1 if the slope of the straight line in a scatter diagram is:(a) Positive (b) Negative (c) Zero (d) None of theseQuestion 8 of 209. In a ‘negative’ relationship(a) As x increases, y increases (b) As x decreases, y decreases (c) As x increases, y decreases (d) Both (a) and (b)Question 9 of 2010. Scatter diagram helps us to:(a) Find the nature of correlation between two variables (b) Obtain the mathematical relationship between two variables (c) Compute the extent of correlation between two variables (d) Both (a) and (c)Question 10 of 2011. The lowest strength of association is reflected by which of the following correlation coefficients?(a) 0.95 (b) - 0.60 (c) -0.35 (d) 0.29Question 11 of 2012. Relation between price and demand is:(a) positive (b) negative (c) one to one (d) no relationshipQuestion 12 of 2013. If the relationship between x and y is positive, as variable y decreases, variable x:(a) Increases (b) Decreases (c) Remains same (d) Changes linearlyQuestion 13 of 2014. Kari Pearson’s coefficient is defined from:(a) Ungrouped data (b) Grouped data (c) Both (a) and (b) (d) None of theseQuestion 14 of 2015. When r = 1, all the points in a scatter diagram would lie:(a) On a straight line directed from lower left to upper right (b) On a straight line (c) On a straight line directed from upper left to lower right (d) Both (a) and (b)Question 15 of 2016. The highest strength of association is reflected by which of the following correlation coefficients?(a) -1.0 (b) -0.95 (c) 0.1 (d) 0.85Question 16 of 2017. When two variables change in the same direction, then such a correlation is called:(a) negative (b) positive (c) no correlation (d) all of theseQuestion 17 of 2018. There is a high degree of negative correlation between ‘overweight’ and ‘life expectancy’. A correlation coefficient consistent with the above statement is:(a) r = 0.80 (b) r = 0.20 (c) r = -0.20 (d) r = -0.80Question 18 of 2019. Correlation coefficient is __________ of the units of measurement.(a) Independent (b) Dependent (c) Both (a) and (b) (d) None of theseQuestion 19 of 2020. The correlation between sale of cold drinks and day temperature is:(a) Positive (b) Negative (c) Zero (d) None of theseQuestion 20 of 20 Loading...
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