为什么增加K会增加N-K-1/N-1？

as the teaser rate period可调节利率

麻烦再解释下C选项。为什么是解释为评级使用者支付费用？

这两个最大值是要背的？还是怎么判断出来的？讲解一下，谢谢

is realized in the year it occurs.中文解释不是在发生的那一年实现。老师解释是在每一年这。麻烦重新解释下C选项不正确？

为什么是Bj^加减关键值，后面那个Sbj是s/根号（n-1）吗

The use of control variates is limited to simulations in which there is a closed-form solution with which to compare the simulated outcome. 麻烦在解释下

R^2调整之后，RSS/（n-1-k）不就是方差了吗

The loss given default for a derivative transaction is typically negatively correlated with the counterparty’s probability of default.

自由度是相当于n吗，平均平方和为什么是方差