标准差均值
网络释义
...的平均水平；SDNN（总体标准差），评估24h时常HRV的总体变化；SDANN（均值标准差），反映HRV中的慢变化成分；SDNNI（标准差均值），反映短程（5min）心率的平均变异程度；r-MSSD（差值均方的平方根），反映HRV中的快变化成分；PNN50（相邻间期差值大于50ms的百...
基于24个网页-相关网页
...析指标：24 h正常R R间期标准差(SDNN )，每5 min正常R R间期平均值的标准差(SDANN), 每5 min正常R-R间期的标准差均值(ASDNN)，相邻R-R间期差值的均方根(rMSSD)。频域分析，用快速傅立叶转换方法获得，记录低频和高频比率（LF/HF）。
基于12个网页-相关网页
双语例句原声例句
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保单的数量并不影响其均值,但是会影响其标准差,所以这条曲线非常陡峭,而这就是保险的核心原理
Number of policies doesn't affect the means but it affects that standard deviation, so it becomes very collapsed and this is the basic core idea of insurance.
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根据我的估算,那次波动偏离均值有25倍标准差之巨
According to my calculations it was a twenty-five standard deviation event.
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对于连续性变量结局，你需要输入每组的参与者数目、结局的平均值和标准差。
For continuous outcomes, you will need to enter the number of participants, the mean outcome value and the standard deviation for each group.
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Number of policies doesn't affect the means but it affects that standard deviation, so it becomes very collapsed and this is the basic core idea of insurance.
保单的数量并不影响其均值,但是会影响其标准差,所以这条曲线非常陡峭,而这就是保险的核心原理
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According to my calculations it was a twenty-five standard deviation event.
根据我的估算,那次波动偏离均值有25倍标准差之巨
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What we want to do now is compute the mean and variance of the portfolio-- or the mean and standard deviation, since standard deviation is the square root of the variance-- for different combinations of the portfolios.
我们现在要做的是,计算这个投资组合的均值和方差-,或者均值和标准差，因为标准差的平方就等于方差-,这对任何投资组合都是一样的。
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