但若组合里只有股票和债券，我的标准差会高得多。
But if I would confine myself just to stocks and bonds, then I would get a much higher standard deviation.
本文提出依据随机参数的均值和标准差取值，将各随机参数取值组合后再用模拟法计算失效概率。
This paper proposed that according to random variables mean value & standard deviation, its values are determined and are combined, then the failure probability is calculated by simulation.
本文提出依据随机参数的均值和标准差取值，将各随机参数取值组合后再用模拟法计算失效概率。
This paper proposed that according to random variables mean value & standard deviation, its values are determined and are combined, then the failure probability is calculated by simulation.
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