1·Now,more than 130 managers failed because, in addition to survivorship bias, there's something called backfill bias.
其实失败的经理人超过130位,因为除了生存偏差之外,还有称为回填偏差的影响
2·Looking at this particular group, he estimated survivorship bias to be 4.4% per year and backfill bias to be 7.3% per year.
分析这个特定的样本，他估算其生存偏差每年达到4.4%，回填偏差每年达到7.3%。
3·You've got survivorship bias taking out bad records and then you've got backfill bias adding good records.
生存偏差去掉了那些糟糕的记录,回填误差又加入了一些好的记录
4·So, we're talking about a group of funds that in aggregate probably produced somewhere in the low teens returns and he's got 11.7% per year combined survivorship bias and backfill bias.
因此我们说这组基金总体上，大概产生了略高于10%的收益率，他算出的数字是每年11.7%，结合了生存偏差和回填偏差。
5·Before road works starts, the underground piping works under the road foundation should have already completed and backfill should have also completed according to design requirements.
道路工程施工前，路基下的地管工程应施工完毕，并按设计要求完成土方回填。