U.S. goes by Cetane Number of 40 whereas EU follows a Cetane Index of 46 plus a Cetane Number of 51. Other countries either specify Cetane Number or Cetane index, some of them specify both. Cetane Number can be improved by adding chemical additives , the Cetane Index cannot be influenced since its a quality of base fuel.
The misery index is an index that tries to measure overall happiness in economic terms. It adds the unemploymnet rate to the inflation rate. The higher the number the greater the misery.
Think of the "ex" in index as meaning exponent. Write the prime factorization with exponents. 216 = 23 x 33
body mass index
good index number
Fisher's Index
According to Prof.Fisher "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" ie, P01 * P10 = 1
what is index number
uses of index
Seasonal wind direction http://answers.yahoo.com/question/index;_ylt=ArE8pJxS106Jhh7ccnTOEUYjzKIX;_ylv=3?qid=20080804201130AAES2mR
The Fisher's index is considered an ideal index because it effectively combines the strengths of both the Laspeyres and Paasche indices, thereby providing a more accurate reflection of price changes over time. It achieves this by averaging the two indices, mitigating the bias that can arise from using only one measure. Additionally, the Fisher index is flexible, allowing for changes in quantities and prices, which makes it robust and reliable for economic analysis. Its geometric mean approach ensures that it respects the principles of time reversal and factor reversal, further enhancing its validity as an index.
Its Postal Index Number and for mobile its Personal Identity Number.
disadvantages of index numbers
unit test in index
Why should I help you?! It's my index number that cannot be found!
Coordinate index ? Sure ! It's easy ... You just have to coordinate your index number !
merits and demerits of index number