In case of unweighted average of relatives, price relative of each commodity is first calculated and then average (mean, median or geometric mean) of these price relatives for all the commodities is taken. average of relatives can be calculated by taking arithmetic mean, geometric mean or median as average. Therefore there is a slight difference between the formulas depending upon the type of average used. Different formulas for the calculation of unweighted average of relatives are given below.
Unweighted Average of Relatives Index (Mean)
Unweighted Average of Relatives Index (Median)
Problem: Calculate price relatives or simple price index for the following data taking 1980 as base, using
unweighted average of relatives is calculated by using the formula of taking mean as average. This calculation is shown in the table given below.
Median of the arranged data having odd number of observations can be calculated by using the formula:
The calculation of price relatives for taking median as average is given as:
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what is *m in antilog formula
equal to the mean usage, m=no of commodities
heplfull but not that informative