老师，怎么理解相同评级的ABS产品和公司债有相同的EL？

这道题没有说明1.56代表分位点，这个怎么区分数字是不是分位点啊？

假设检验的时候，np和根号下np(1-p)这里麻烦老师帮忙回忆一下

B选项还是不理解，什么模型研究的是long term

老师解析里有这样一句话： The model did not ignore correlation, but the trade thesis focused on anticipated gains from convexity. ，这与C选项后半句的表述“ deltas were partial derivatives that did not account for changing correlation, which drastically altered the hedge ratio”有关系么，怎么理解，谢谢

请问老师B选项怎么理解，should tell boards directly 这对么

董事会负责 top-level risk management吧？怎么说CRO

请问老师这句话是什么意思？The trade could also have been hedged against correlation risk by employing an overlay hedge: that is, by going long single-name protection in high default-probability names. In this sense, the 'arbitrage' could not be captured via a two-leg trade, but required more components."

这里转不过来弯，风险中性价是4块钱，CVA是我承担的交易对手信用风险，为什么不理解为我要为对手要的价格应该是包含了他违约的风险，所以实际调整的价格=4+0.4？

此处老师讲建模发生次数使用二项或者泊松分布，在已知单独事件概率时使用二项分布，那么泊松分布在什么情况下使用，也请老师举个例子呗