estimation time
121Design of experiments — In general usage, design of experiments (DOE) or experimental design is the design of any information gathering exercises where variation is present, whether under the full control of the experimenter or not. However, in statistics, these terms… …
122Item response theory — In psychometrics, item response theory (IRT) is a body of theory describing the application of mathematical models to data from questionnaires and tests as a basis for measuring abilities, attitudes, or other variables. It is used for statistical …
123Megalodon — For other uses, see Megalodon (disambiguation). Megalodon Temporal range: Late Oligocene Early Pleistocene 28–1.5 Ma …
124Waxy corn — (maize) was found in China in 1909. As this plant showed many peculiar traits, the American breeders long used it as a genetic marker to tag the existence of hidden genes in other maize breeding programs. In 1922 a researcher found that the… …
125Models of DNA evolution — A number of different Markov models of DNA sequence evolution have been proposed. These substitution models differ in terms of the parameters used to describe the rates at which one nucleotide replaces another during evolution. These models are… …
126Math Field Day — is a name for various mathematics competitions, including a team competition in Orange County, California[1] and an individual competition in West Virginia. The remainder of this article is about the West Virginia competition. The West Virginia… …
127operations research — the analysis, usually involving mathematical treatment, of a process, problem, or operation to determine its purpose and effectiveness and to gain maximum efficiency. [1940 45, Amer.] * * * Application of scientific methods to management and… …
128MISTRAM — Missile Trajectory Measurement System. MISTRAM (MISsile TRAjectory Measurement) was a high resolution tracking system used by the United States Air Force (and later NASA) to provide highly detailed trajectory analysis of rocket launches. A… …
