## What does an index number mean

The noun INDEX NUMBER has 1 sense: 1. a number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time Familiarity information: INDEX NUMBER used as a noun is very rare. An index number is a measure that summarizes changes in prices, levels of activity, quantities, lengths, and other measurements. Index numbers are created to study the change in effects of factors that cannot be measured directly. index number. n. A number indicating change in magnitude, as of price, wage, employment, or production shifts, relative to the magnitude at a specified point usually taken as 100. The primary role of index numbers is to simplify otherwise complicated comparisons. It is especially useful when comparing currencies that have lots of different nominal values. Some countries even use index numbers to modify public policy, such as adjusting government benefits for inflation. An index number is an economic data figure reflecting price or quantity compared with a standard or base value. The base usually equals 100 and the index number is usually expressed as 100 times the ratio to the base value. When a number is expressed with exponents, or one number to a power of another, it is considered to be in index form. For example, 27 can be written in index form as 3^3. This is because 27 is 3x3x3 or 3^3. A common question in math will be to write a number in index form using a different number as base.

## Index numbers are a useful way of expressing economic data time series and comparing / contrasting What are some frequently used examples of index numbers? Average motor insurance premiums paid in the United Kingdom The base value does not necessarily have to be a specific year - it can also be a country.

Indicator of average percentage change in a series of figures where one figure ( called the base) is assigned an arbitrary value of 100, and other figures are Index numbers are a useful way of expressing economic data time series and comparing / contrasting What are some frequently used examples of index numbers? Average motor insurance premiums paid in the United Kingdom The base value does not necessarily have to be a specific year - it can also be a country. Index numbers are used to measure changes and simplify comparisons. are interested in how changes in the monetary value of economic transactions can be Mathematically, an economic index number is an average of the many different 25 Sep 2001 A measure reflecting the average of the proportionate changes in the or the number of services; the quantity index has no meaning from an 13 Oct 2016 The composite index number is a weighted mean of the elementary index numbers in which the weighting represents the "mass" of the

### The primary role of index numbers is to simplify otherwise complicated comparisons. It is especially useful when comparing currencies that have lots of different nominal values. Some countries even use index numbers to modify public policy, such as adjusting government benefits for inflation.

Index numbers are a simple way of making it easier to compare numbers over a period of time. Index numbers measure relative changes in the price of a sum of representative data. For example, the FTSE-100 is an index displaying the average share price movements of the biggest 100 companies listed on the London Stock market.

### In statistics and research design, an index is a composite statistic – a measure of changes in a representative group of individual data points, or in other words, a compound measure that aggregates multiple indicators. Indexes summarize and rank specific observations.

An index number is a measure that summarizes changes in prices, levels of activity, quantities, lengths, and other measurements. Index numbers are created to study the change in effects of factors that cannot be measured directly. index number. n. A number indicating change in magnitude, as of price, wage, employment, or production shifts, relative to the magnitude at a specified point usually taken as 100.

## WHAT DOES INDEX NUMBER MEAN IN ENGLISH? Index (economics). In economics and finance, an index is a statistical measure of changes in a representative

27 Mar 2018 We've recently started to include index numbers in our charts of the are indexing against the average 18-24 year old, Spotify over-indexes by number of completely different meanings in mathematics. Most commonly, it is used in the context of an index set, where it means a quantity which can take on A stock index is a group of shares that are used to give an indication of a sector, exchange or economy. Usually, a stock index is made up of a set number of the

Indicator of average percentage change in a series of figures where one figure ( called the base) is assigned an arbitrary value of 100, and other figures are Index numbers are a useful way of expressing economic data time series and comparing / contrasting What are some frequently used examples of index numbers? Average motor insurance premiums paid in the United Kingdom The base value does not necessarily have to be a specific year - it can also be a country. Index numbers are used to measure changes and simplify comparisons. are interested in how changes in the monetary value of economic transactions can be Mathematically, an economic index number is an average of the many different 25 Sep 2001 A measure reflecting the average of the proportionate changes in the or the number of services; the quantity index has no meaning from an