# Applied Statistics-Spectral Analysis of Weakly Stationary Process (ISS (Statistical Services) Statistics Paper III): Questions 1 - 1 of 1

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## Question number: 1

» Applied Statistics » Spectral Analysis of Weakly Stationary Process

Appeared in Year: 2009

### Describe in Detail

Distinguish between fixed base and chain base methods for the construction of index numbers.

Discuss their relative merits.

### Explanation

**Fixed base method: ** In this method, the base year remains fixed for all the years of calculation. The base year price (quantity) selected may be the price of a given year or the average of prices of a given number of years. In the absence of any instruction to this effect, the foremost year’s price is taken as the base year’s price. Formula for ca…

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