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Each candy also has a few customization options – you can choose if you'd like your Jelly Bellys to come as a standard random sampling, or in a flavor or two of your choosing.
For comparison, 10,000 fully randomised samples, rand (pop), were also generated by standard random sampling from the set of all genes.
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In many cases, the standard simple random sampling (SRS) design used for biomarker validation studies is costly and inefficient.
Moreover, targeting people based on race or religion does no better in helping law enforcement officials in their task of catching terrorists than standard uniform random sampling techniques.
Both systematic and stratified sampling yield smaller standard errors than simple random sampling, and the stratified design has smaller standard errors than the systematic design at each sample size evaluated.
Stratification based on mapped BA reduced standard errors of the global burned area accuracy estimates from one-half to one-eighth relative to standard errors of simple random sampling.
All estimates were within two simple random sampling standard errors of each other, thereby illustrating the utility of model-based inference for non-sampled areas.
Under simple random sampling, standard methods of analysis of data apply, but data are often collected from complex surveys involving clustering, stratification and unequal probabilities of selection.
Using a similar approach to Chen et al., we find that the GC content of both our SAGE and MPSS libraries is higher than that seen in random sampling by ~13 standard deviations and ~57 standard deviations, respectively.
The data was obtained with a standard questionnaire to a multistage random sampling technique of 1650 households with access to electricity from the national grid.
To simulate the heteroskedascity common in array data, standard deviations of the simulated probeset lognormal distributions were generated empirically by random sampling from the standard deviations of the lognormal fits to the array data.
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