A measure of the reward that can be achieved through a given stochastic process with certain properties.

plural of index digit

(zootomy) In other animals that digit corresponding to the human index finger.

(statistics) A statistic for gauging the similarity and diversity of sample sets, based on the size of the intersection between the sets divided by the size of the union of the sets.

plural of index fund

(finance) A fund that tracks a specific basket of underlying investments.

Synonym of Gini coefficient

(economics) Synonym of Hoover index

(economics) An economic measure equal to the portion of the total community income that would have to be redistributed to establish perfect income uniformity.

(physics) index (on a tensor) that isn't summed over