| random sample | A group selected randomly, solely by chance. (12 Dec 1998) |
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| random sampling | A selection of elements by a formal randomizing device for purposes of inference about a population of inference from that population in such a way that the probability of each possible outcome may be precisely specified in advance; the inferences are necessarily stochastic. (05 Mar 2000) |
| random variable | A variable that may assume a set of values, each with fixed probabilities or probability densities (its distribution), in such a way that the total probability assigned to the distribution is unity; the random variable may be discrete, continuous, or mixed discrete-continuous. (05 Mar 2000) |
| random walk | <cell biology> A description of the path followed by a cell or particle when there is no bias in movement. The direction of movement at any instant is not influenced by the direction of travel in the preceding period. If changes of direction are very frequent, then the displacement will be small, unless the speed is very great and the object will appear to vibrate on the spot. Although the behaviour of moving cells in a uniform environment can be described as a random walk in the long term, this is not true in the short term because of persistence. (18 Nov 1997) |
| random waves | Wave's in the electroencephalogram which occur paroxysmally and asynchronously. (05 Mar 2000) |
| randomisation | <statistics> The process by which patients in a clinical trial are randomly assigned to different treatments Randomisation minimizes the differences among groups by equally distributing people with particular characteristics among all the trial arms. (09 Oct 1997) |
| randomised controlled trial | A clinical trial that involves at least one test treatment and one control treatment, concurrent enrollment and follow-up of the test- and control-treated groups, and in which the treatments to be administered are selected by a random process, such as the use of a random-numbers table. Treatment allocations using coin flips, odd-even numbers, patient social security numbers, days of the week, medical record numbers, or other such pseudo- or quasi-random processes, are not truly randomised and a trial employing any of these techniques for patient assignment is designated simply a controlled clinical trial. (12 Dec 1998) |
| randomised controlled trials | Clinical trials that involve at least one test treatment and one control treatment, concurrent enrollment and follow-up of the test- and control-treated groups, and in which the treatments to be administered are selected by a random process, such as the use of a random-numbers table. Treatment allocations using coin flips, odd-even numbers, patient social security numbers, days of the week, medical record numbers, or other such pseudo- or quasi-random processes, are not truly randomised and trials employing any of these techniques for patient assignment are designated simply controlled clinical trials. (12 Dec 1998) |
| randomised trial | <statistics> A clinical trial in which patients have been randomly assigned to receive either the study drug or alternative treatment, in which neither the patient nor the physician conducting the study know which treatment is being given the patient, and in which the alternative to the study drug is a placebo, the study is conducted at several centres. (09 Oct 1997) |
| randomization | Allocation of individuals to groups, e.g., for experimental and control regimens, by chance. (05 Mar 2000) |
| random |
(ran
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| random pattern flap |
a myocutaneous flap with a random pattern of arteries, as opposed to an axial pattern flap.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| random |
There are many minor characters in the various versions of The Hitchhiker's Guide to the Galaxy, by Douglas Adams. In fact, defining a major character is rather difficult. If the major characters are those the plot focuses on, they are Arthur Dent, Ford Prefect, Zaphod Beeblebrox, Marvin and Trillian, with the possible inclusion of Slartibartfast, Random Dent and Fenchurch. If they are defined as characters appearing in all the books, they are only Ford Prefect and Arthur Dent. ...
출처: en.wikipedia.org/wiki/Random_(character)
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| random genetic drift |
Genetic drift is a mechanism of evolution that acts in concert with natural selection to change the characteristics of species over time. It is a stochastic effect that arises from the role of random sampling in the production of offspring. Like selection, it acts on populations, altering the frequency of alleles and the predominance of traits amongst members of a population, and changing the diversity of the group. ...
출처: en.wikipedia.org/wiki/Random_genetic_drift
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| randomization |
When referring to an experiment or clinical trial, the process by which animal or human subjects are assigned by chance to separate groups that compare different treatments or other interventions. Randomization gives each participant an equal chance of being assigned to any of the groups.
출처: www.stjude.org/glossary
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| Rand | a variable quantity that is random |
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| Rand | the most common computer memory which can be used by programs to perform necessary tasks while the computer is on |
| Rand | a deliberately haphazard arrangement of observations so as to simulate chance |
| Rand | arrange in random order |
| Rand | set up or distributed in a deliberately random way |
| Rand | a deliberately haphazard arrangement of observations so as to simulate chance |
| Rand | arrange in random order |
| Rand | set up or distributed in a deliberately random way |
| Rand | in a random manner |
| Rand | the quality of lacking any predictable order or plan |
| Rand | feeling great sexual desire |