| 单词 | probability sampling |
| 释义 | probability sampling probability sampling(random sampling) A sampling procedure in which each element of a population has a known chance of being selected for the sample. Apart from simple random sampling, this includes certain forms of stratified sampling and systematic sampling. The process depends upon reliable, up-to-date lists of the population being available; without such lists a probability sample cannot be chosen. Comparenon-probability sampling. |
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