A cellphone's effect on the brain is very weak, so you lose statistical power with small sample sizes and durations, "said Volkow."
手机对大脑的影响很微弱，因此，仅在短期内对少数人进行研究，在统计学上不具备说服力。
Second, the large population size affected by this powerful earthquake allowed this study to achieve a sufficient statistical power to detect the impact of earthquakes on a rare event such as suicide.
第二，这次能量巨大的地震影响了大规模的人群，允许这项研究完成足够的统计量来发现地震对一些例如自杀的罕见事件的影响。
Absence of statistical components' failure data is a great challenge for power system operation risk assessment.
缺乏历史故障统计数据是电力系统运行风险评估中的突出难题。
A limitation of the study was that the trial lacked statistical power for the composite outcome of risk for death from cardiovascular causes or nonfatal myocardial infarction.
这项研究的一个限制是缺乏心脏血管原因死亡或是非致命性心肌梗塞综合预后的统计力量。
Conclusion mi is able to solve a variety of problems in missing data sets and to improve the statistical power, especially with the use of MCMC method, for complicated missing data sets.
结论多重填补方法可以处理有缺失数据资料中的许多普遍问题，可提高统计效率，尤其是MCMC模型在处理复杂的缺失数据上，优势明显。
Power spectrum analysis and statistical moment function on a range of scales revealed scaling qualities of the date from stock market.
通过对幂谱和统计矩函数的分析，得出股票市场时间序列的无标度性。
This paper deals with a statistical approach to the average power consumption of the positioners in magnetic disc drives.
本文讨论了磁盘存贮器磁头驱动定位装置的统计平均功耗问题；
This paper deals with a statistical approach to the average power consumption of the positioners in magnetic disc drives.
本文讨论了磁盘存贮器磁头驱动定位装置的统计平均功耗问题；
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