That's got the lowest possible standard deviation of expected return and that's 25% stocks and 75% bonds with this sample period.

这个组合预期回报的标准差最小,在这一点上，投资组合,由25%的股票和75%的债券构成。

耶鲁公开课 - 金融市场课程节选

The first problem set asked you to manipulate the model that I just presented-- the model of how you form portfolios and the model of the capital asset pricing model.

第一道习题,考察的是你们能否活用我刚刚给出的几个模型-,包括怎样构成投资组合的模型,和资本资产定价模型。

耶鲁公开课 - 金融市场课程节选