The plan involves the Standard and Poor's list of five hundred stocks.

VOA: special.2010.05.21

You can't come up with a number to describe the twenty-five standard deviation event; it's just too large a number, I think, for any of us to really comprehend.

你根本无法想出一个数字,来描述这个偏离25倍标准差的事件,对我们普通人来说,这是个难以想象的天文数字

耶鲁公开课 - 金融市场课程节选

According to my calculations it was a twenty-five standard deviation event.

根据我的估算,那次波动偏离均值有25倍标准差之巨

耶鲁公开课 - 金融市场课程节选

Some mice were put in standard laboratory cages, in groups of five or so, with plenty of food and water.

VOA: standard.2010.07.14