Chapter 8 Index Numbers

Chapter 8 Index Numbers Question 1. An index number which accounts for the relative importance of the items is known as (i) weighted index (ii) simple aggregative index (iii) simple average of relatives Answer: (i) An index number becomes a weighted index when the...

Chapter 7 Correlation

Chapter 7 Correlation Question 1. The unit of correlation coefficient between height in feet and weight in kgs is (a) kg/feet (b) percentage (c) non-existent Answer: (c) Correlation coefficient (r) has no unit. It is a pure number. It meansss units of measurement are...

Chapter 6 Measures of Dispersion

Chapter 6 Measures of Dispersion Question 1. A measure of dispersion is a good supplement to the central value in understanding a frequency distribution. Comment. Answer: Dispersion is the extent to which values in a distribution differ from the avarage of the...

Chapter 5 Measures of Central Tendency

Chapter 5 Measures of Central Tendency Question 1. Which average would be suitable in the following cases? (i) Average size of readymade garments. (ii) Average intelligence of students in a class. (iii) Average production in a factory per shift. (iv) Average wages in...

Chapter 4 Presentation of Data

Chapter 4 Presentation of Data Answer: the following questions, 1 to 10, choosing the correct answer. Question 1. Bar diagram is a (a) one-dimensional diagram (b) two-dimensional diagram (c) diagram with no dimension (d) None of these Answer: (a) Bar diagrams are...
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