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)。
2
With statistics and statistical methods applied to analyze economic problems, ithas become an important symbol of modern economics.
用统计数据和统计方法来分析经济问题，已经成为现代经济学的重要标志。
3
This dissertation also does research on the application in estimation of communication signals' carrier offset and symbol rate with the parametric statistical method.