Cumulative frequency analysis — is the applcation of estimation theory to exceedance probability (or equivalently to its complement). The complement, the non exceedance probability concerns the frequency of occurrence of values of a phenomenon staying below a reference value.… … Wikipedia
Expected shortfall — (ES) is a risk measure, a concept used in finance (and more specifically in the field of financial risk measurement) to evaluate the market risk or credit risk of a portfolio. It is an alternative to value at risk that is more sensitive to the… … Wikipedia
Expected value — This article is about the term used in probability theory and statistics. For other uses, see Expected value (disambiguation). In probability theory, the expected value (or expectation, or mathematical expectation, or mean, or the first moment)… … Wikipedia
Time value of money — The time value of money is the value of money figuring in a given amount of interest earned over a given amount of time. The time value of money is the central concept in finance theory. For example, $100 of today s money invested for one year… … Wikipedia
Accelerated failure time model — In the statistical area of survival analysis, an accelerated failure time model (AFT model) is a parametric model that provides an alternative to the commonly used proportional hazards models. Whereas a proportional hazards model assumes that the … Wikipedia
Social Security (United States) — This article is about the retirement/disability program. For the general concept of providing welfare, see Social security. For other uses, see Social Security (disambiguation) … Wikipedia
Return period — A return period also known as a recurrence interval is an estimate of the interval of time between events like an earthquake, flood or river discharge flow of a certain intensity or size. It is a statistical measurement denoting the average… … Wikipedia
Renewal theory — is the branch of probability theory that generalizes Poisson processes for arbitrary holding times . Applications include calculating the expected time for a monkey who is randomly tapping at a keyboard to type the word Macbeth and comparing the… … Wikipedia
Global health — is a field at the intersection of several social science disciplines demography, economics, epidemiology, political economy and sociology. It focuses on determinants and distribution of health in international contexts. The term global health… … Wikipedia
space exploration — Investigation of the universe beyond Earth s atmosphere by means of manned and unmanned spacecraft. Study of the use of rockets for spaceflight began early in the 20th century. Germany s research on rocket propulsion in the 1930s led to… … Universalium
navigation — navigational, adj. /nav i gay sheuhn/, n. 1. the act or process of navigating. 2. the art or science of plotting, ascertaining, or directing the course of a ship, aircraft, or guided missile. [1520 30; < L navigation (s. of navigatio) a voyage.… … Universalium