...是会有假设检定(hypothesis testing),在这检定有所谓统计有效(statistically significant),需要信心区间(confidence interval)的设定,这是需要平均值(mean)及差异数(variance),而这又来自机率(probab..
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在最后的事后检验21岁的信心,正态分布(95%置信区间)水平低于其他年龄段。
In the final post hoc test of 21-year-old confidence, the normal distribution (95% confidence interval) level is lower than other ages.
我们有能力、有信心保持经济在合理区间运行。
We have the capabilities and confidence to keep the economy functioning within the proper range.
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