random sampling


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ran′dom sam′pling


n.
a method of selecting a sample (ran′dom sam′ple) from a statistical population so that every sample that could be selected has a predetermined probability of being selected.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.random sampling - the selection of a random sample; each element of the population has an equal chance of been selected
sampling - (statistics) the selection of a suitable sample for study
lucky dip - a selection or decision purely at random; "their system of hiring people seemed to be a sort of lucky dip"
References in periodicals archive ?
First (random sampling), the overall sample can be randomly drawn--that is, every individual can have the same objective probability of entering the overall sample.
Likewise, a falsely positive study result (one that arises because of random sampling errors) is more likely to occur when a large number of small trials test an ineffective treatment.
The comparison sample of 45 nondisabled students included study participants who were selected in a random sampling procedure, and volunteers.
The first section of this column reviews several standard algorithms for random sampling. The next section describes an elegant new algorithm by Floyd.
Systematic random sampling, which combines both the unbiasedness of random sampling and the efficiency of a systematic sampling, was used in our research.
The stratified random sampling method was used to select students while the purposive and random sampling techniques were used to select heads of departments and lecturers respectively.
Out of a random sampling of 171 government properties and other assets, only 121 deeds were retrieved, but 50 were missing, MPs revealed yesterday.
In a random sampling of 3,400 Epocrates physicians, more than 95 percent reported that clinical PDA software helps them provide better quality of care and save time; nearly 60 percent said they avoid one or more adverse drug events or medical errors per week, and 40 percent said they avoid one per month.
[] Use random sampling. Auditing a patternless selection of items makes it impossible for fraudsters to determine which will be chosen.
Five members of the population were then randomly selected through simple random sampling to participate in a semi-structured interview.
Negative controls were selected by simple random sampling from all previously negative samples.
But a random sampling of media images in just the past year confirms that as gays and lesbians become more visible in the mainstream, they are being depicted as more a part of the mainstream.