In statistical terminology, this sampling variability explanation is called the null hypotheses. (the null hypothesis is designated by the symbol Ho.)

在统计学术语中，这个抽样可变性说明被称为虚假设(null hypothesis)。

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Empirical study was also conducted and the results refused the two null hypotheses: Firstly, frame-based SLVA model does not positively correlate with SLV enlargement.

本研究设计实验且实验结果拒绝了两个零假设，即：其一，基于语义框架的二语词汇习得模式对于第二语言词汇接受的量度不产生任何影响。

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It is shown that, under both the null and the local alternatives, the random weighting statistics have the same asymptotic distribution as the original test statistic under the null hypotheses.

我们证明了在原假设和局部对立假设之下随机加权统计量的条件渐近分布与检验统计量在原假设之下的渐近分布相同。

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