老师您好，我想问下这个[N(0.5)=0.9013，N(0.25)=0.8085]这些数值考试是以表格形式给还是像这道题一样给呢？

老师您好，请问下阶乘计算器应该怎么按呢？

老师请问下这个题计算器应该怎么按呢

老师，356题sell call也能达到看空的效果，且premium更便宜，为何不选C呢？

370哪个答案对？

a covered call position is a long position in the stock and a short position on the call option。 换一下是否正确，即 a covered call position is a short position in the stock and a long position on the call option。

How about constant variance ?

为什么是直接除？coefficient在这个题里是什么意思？

老师，能帮忙翻译一下Conditional VaR estimated for a confidence level corresponding to one minus the probability of default for the firm’s target rating provides an unbiased measure of the amount of the economic capital required above the firm’s bankruptcy threshold point to achieve the probability of default associated with the firm’s target rating.

这道题根号252分之1是哪里来的呢