The formula for calculating an index number should be such that it gives the same ratio between one point of comparison and the other, no matter which of the two is taken as the base or putting it another way, the index number reckoned forward should be reciprocal of the one reckoned backwards' which test of consistency of index number is this ?
The system of combining two or more overlapping series of index numbers to obtain a single continuous series is called
If 'I' represents a cost of living index, then the purchasing power of money is proportional to
The standard deviation of a distribution is 5. The value of the fourth central moment, in order that the distribution be mesokurtic, should be :
Suppose owing to increased prices, a consumer reduces consumption of all commodities by 10% compared to the previous year. If IL and IP are the Laspeyres' and Paasche's price indices for the current year with the previous year as base, then
The probability that an urn containing 5 balls contains only white balls if the first two balls drawn from it were found to be white is :
