So in this case, my expected payoff is a ? of 1 plus a ? of 4, for a total of again 2.5.

在这种情况下,我预期收益是?乘1加?乘4,总和还是2.5

耶鲁公开课 - 博弈论课程节选

This is going to equal a ? of 4 plus a ? of 2, which is a ? of 6, so that's 3.

它等于?乘4加?乘2,即6的?,也就是3

耶鲁公开课 - 博弈论课程节选