你可能已经看过关于所患癌症的生存数据。

You probably have already looked at the survival statistics of your cancer.

youdao

尽管如此，仅凭生存期的统计数据是无法回答这样一个基本问题的：“与什么相比？”

Survival data alone, though, fail to answer a basic question: “compared with what?”

youdao

他留意到，尽管全世界大多数种群生活在热带地区，它们的生存风险却被低估了，因为目前该地区的数据只有很少的一部分。

He notes that while most of the world's species live in the tropics their risk is underestimated because only a sliver of data from those regions exists.

youdao

In the case of Burt Malkiel's data, more than 11% per year and in the case of Roger Ibbotson's data between 7% and 8% per year of those returns can be explained either by backfill bias or survivorship bias.

在伯特·麦基尔的数据中,超过11%的年平均收益,在罗杰·伊博森的数据中,7%到8%的年平均收益,可以用生存偏差或回填偏差来解释

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