| 单词 | random sampling |
| 释义 | random sampling noun[U] uk/ˌræn.dəm ˈsɑːm.pəl.ɪŋ/us/ˌræn.dəm ˈsæm.pəl.ɪŋ/theprocessofchoosingitemstotestwithout using anypatternas to how they arechosen 随机取样Quality and standard
Examplesofrandom samplingrandom sampling Arandomsamplingin the final phase was ensured, but the element of purposive sampling dominated. From theCambridge English Corpus In addition torandomsampling, what other assumptions are violated in a study? From theCambridge English Corpus Selection of the study population was throughrandomsampling. From theCambridge English Corpus The random selection of the clusters as the sampling units can be performed using simple random, systematic or stratifiedrandomsampling. From theCambridge English Corpus In all cases, the distribution is based on arandomsamplingof the 500 simulations to obtain 100,000 estimated r values. From theCambridge English Corpus Not only does this make the definition of a lot coherent, it makes testing more robust compared to non-simplerandomsampling. From theCambridge English Corpus Stratifiedrandomsamplingwas employed to select transect location by delineating 30 points 50 m apart on each of five trails in the study area. From theCambridge English Corpus Consequently, in the presence of clustering, the calculation of the variance of the prevalence using formulae for simplerandomsamplingmay yield overly optimistic estimates. From theCambridge English Corpus The p-value indicates the likelihood that the result would occur by chance in anotherrandomsamplingof similar subjects. From theCambridge English Corpus The term "behavior" objectifies and automatizes language use as an "out there" social reality, amenable to sociolinguistic surveying based onrandomsampling. From theCambridge English Corpus From this sampling frame one female in each dwelling unit was selected using simplerandomsampling. From theCambridge English Corpus Selecting longer sentences is the most effective of these but is still far worse thanrandomsampling. From theCambridge English Corpus For completeness, we conclude by demonstrating that thatrandomsamplingis a stronger baseline than other model-free selection methods, such as sequential sampling. From theCambridge English Corpus Stratification was considered a more efficient sampling procedure than simplerandomsamplingbecause the firms were relatively heterogeneous. From theCambridge English Corpus Purposive sampling was employed as a list of all the patients could not be obtained and thereforerandomsampling, although preferential, was impractical. From theCambridge English Corpus These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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