system of simultaneous equations
101Mathematical statistics — is the study of statistics from a mathematical standpoint, using probability theory as well as other branches of mathematics such as linear algebra and analysis. The term mathematical statistics is closely related to the term statistical theory… …
102Order condition — The order condition is the state of a set of simultaneous equations in an econometric system such that all its parameters may be identified. For an equation in a system of equations to be identified, the number of excluded exogenous variables in… …
103Control chart — One of the Seven Basic Tools of Quality First described by Walter A. Shewhart …
104Failure rate — is the frequency with which an engineered system or component fails, expressed for example in failures per hour. It is often denoted by the Greek letter λ (lambda) and is important in reliability engineering. The failure rate of a system usually… …
105Official statistics — on Germany in 2010, published in UNECE Countries in Figures 2011. Official statistics are statistics published by government agencies or other public bodies such as international organizations. They provide quantitative or qualitative information …
106Cray X-MP — The Cray X MP was a supercomputer designed, built and sold by Cray Research. It was announced in 1982 as the cleaned up successor to the 1975 Cray 1, and was the world s fastest computer from 1983 to 1985.[citation needed] The principal designer… …
107Optimal design — This article is about the topic in the design of experiments. For the topic in optimal control theory, see shape optimization. Gustav Elfving developed the optimal design of experiments, and so minimized surveyors need for theodolite measurements …
108О — Обеспечение кредита (Security for credit, loan security, collateral) Обеспеченность производства запасами (number of days’, weeks’ stock) Обесценение активов (impairment of assets) …
109Survival function — The survival function, also known as a survivor function or reliability function, is a property of any random variable that maps a set of events, usually associated with mortality or failure of some system, onto time. It captures the probability… …
110Square root — Measured fall time of a small steel sphere falling from various heights. The data is in good agreement with the predicted fall time of , where h is the height and g is the acceleration of gravity. In mathematics, a square root of a number x is a… …
