Roger Ibbotson took a look at a larger group of funds -3,500--funds over a ten-year period and found survivorship bias at 2.9% per year and backfill bias at 4.6% per year.

罗杰·伊博森研究了更大的样本组,3500支基金10年间的表现,算出其生存偏差是每年2.9%,回填偏差是每年4.6%

耶鲁公开课 - 金融市场课程节选

This is going to have one-half mv squared where this is the mass of the electron.

有了电子的质量,就可以用1/2mv^2算出其动能。

麻省理工公开课 - 固态化学导论课程节选