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Some indices display market variations. [definition needed] For example, the Economist provides a Big Mac Index that expresses the adjusted cost of a globally ubiquitous Big Mac as a percentage over or under the cost of a Big Mac in the U.S. in USD. [4] Such indices can be used to help forecast currency values. [citation needed]
Sample of a well maintained data [clarification needed]. 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.
A thesaurus (pl.: thesauri or thesauruses), sometimes called a synonym dictionary or dictionary of synonyms, is a reference work which arranges words by their meanings (or in simpler terms, a book where one can find different words with similar meanings to other words), [1] [2] sometimes as a hierarchy of broader and narrower terms, sometimes simply as lists of synonyms and antonyms.
WordNet is a lexical database of semantic relations between words that links words into semantic relations including synonyms, hyponyms, and meronyms. The synonyms are grouped into synsets with short definitions and usage examples. It can thus be seen as a combination and extension of a dictionary and thesaurus.
Price indices have several potential uses. For particularly broad indices, the index can be said to measure the economy's general price level or cost of living. More narrow price indices can help producers with business plans and pricing. Sometimes, they can be useful in helping to guide investment. Some notable price indices include:
Dental indices, standardized scoring systems for tooth problems; Indexicality, in linguistics, the phenomenon of a sign pointing to some object in the context in which it occurs; Indexing (motion), in mechanical engineering and machining, movement to a precisely known location; Refractive index, a measurement of how light propagates through a ...
Since upper and lower bounds of the true cost of living index can be found, respectively, through the Laspeyres and Paasche indices, the geometric average of the two, known as the Fisher price index, is a close approximation of the true cost of living index if the upper and lower bounds are not too far apart. [6]
MarketGrader indices Barron's 400 Index [1] Nasdaq indices NASDAQ Composite; NASDAQ-100; NASDAQ Financial-100; Russell Indexes (published by Russell Investment Group) Russell 3000; Russell 1000; Russell Top 200; Russell MidCap; Russell 2500; Russell Small Cap Completeness; Standard & Poor's indices S&P 500 (GSPC, INX, SPX) S&P 100; S&P MidCap ...