1. Which of the following index numbers suffer from upward bias?

2. Which of the following is NOT correctly matched ?

3. Which of the following index number suffer from downward bias ?

4. Time reversal test requires that

5. Factor reversal test implies that

6. Which of the following index numbers does not satisfy the unit test ?

7. The figure of a particular year expressed as a percentage of the preceeding year’s figure is called

8. Over period of time, an existing series of index numbers tends to becomes obsolete and it fails to include new commodities gaining importance at a later date or to exclude the commodities losing significance in course of time. These problems can be overcome by-

9. The arithmetic mean of marks scored by girls in the class is 70 while that of the boys is 60. If the arithmetic mean of marks scored by students is 63, then are percentage of girls in the class-

10. For which measure of central tendency the sum of deviations (taking sings into account) of the items from the measure of central tendency is zero ?