Economics

3. This indicates lack of uniformity in the size of items
9. Coefficient of Variation was introduced by
11. In order to save time in calculating mean from a data set containing a large number of observations, this is used
13. The numerical value of a standard deviation can never be
14. When two variables move in the same direction, then such a correlation is called
15. It divides the distribution into hundred equal parts
16. When only two variables are studied, then such a correlation is called
17. It concentrates on the centre of a distribution
19. This cannot be determined graphically
20. Base year is also known as

1. It is the most frequently observed data value
2. The relationship between two variables of a series so that changes in the values of one variable are associated with changes in the values of the other variable
4. this type of index number measures the general changes in prices between the current year and the base year
5. The square of the standard deviations
6. It is also known as cost of living index numbers
7. It is a statistical device for measuring changes in the magnitude of a group of related variables
8. The aggregate index formula using base period quantities is known as
10. The correlation coefficient will be -1 if the slope of the straight line in a scatter diagram is
12. The symbol 'r' is a
18. It is the central value which represents the entire distribution