Sampling variability explains only a portion of the overall uncertainty in a modelled estimate.
抽样变异性仅仅解释了模型估测中整个不确定性的一部分。
This Chi Square statistic will vary from experiment to experiment due to random sampling variability.
由于随机抽样的可变性，因此这个 X 平方分布统计会随实验的不同而不同。
The uncertainty owing to both the sampling variability and the choice of model (s) should be given when disease burden results are presented.
由于抽样变异性和模型选择所引起的不确定性应在展示疾病负担结果的时候予以说明。
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