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.
然后，通过实例的考查，间接地估算了样本总体的相对标准差。
Then the relative standard difference is estimated indirectly from the research of the examples.
本文论述了复杂的技术和外界环境条件下，三种费用估算方法涉及到的随机不确定性及其表征参数——标准差。
This paper discusses uncertainties of three kinds of cost estimation methods and their describing parameters-standard deviation in complicated environment of technology and outside.
本文论述了复杂的技术和外界环境条件下，三种费用估算方法涉及到的随机不确定性及其表征参数——标准差。
This paper discusses uncertainties of three kinds of cost estimation methods and their describing parameters-standard deviation in complicated environment of technology and outside.
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