| random error |
Random error is the irreproducibility in making replicate measurements and affects the precision of a result. The distribution of random errors follows a Gaussian-shape "bell" curve. The precision is described by statistical methods such as a standard deviation or confidence limit.
출처: www-analytik.chemie.uni-regensburg.de/Wolfbeis/tw/...
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| randomization |
Study participants are usually assigned to groups in such a way that each participant has an equal chance of being assigned to each treatment (or control) group. Since randomization ensures that no specific criteria are used to assign any patients to a particular group, all the groups will be equally comparable.
출처: www.wcctrials.com/glossary.HTM
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| random |
is filled with M_ realisations of an uniformly(-1/2, 1/2) distributed random variable. The same value of this realisation is later used in every physical point x.
출처: www.concepts.math.ethz.ch/doxygen/html/classCellA_...
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| random |
in genetic algorithms and simulated evolution in a computer, one needs a plethora of "random" choices: for choosing mates probabilistically based on their fitness scores, for selecting sites along the genetic code for sexual crossover, etc. How does one introduce such randomness into that bastion of determinism, the digital computer? Most commonly through the use of a pseudorandom number generator (above). ...
출처: www.dakotacom.net/~srooke/glossary.html
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| random variable |
"A function that assigns a numerical value to each outcome of an experiment" (Dolciani, 1988). "The outcomes form the sample space of the Random Variable" (Dolciani, Beckenbach, Donnelly, Jurgensen, & Wooton, 1980).
출처: teacherlink.org/content/math/interactive/probabili...
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