老师，这个用金融计算器怎么按？我是CF0=0,C01=2.2,F01=0,C02=2.42+2.42*(1+5%)/(20%-5%)=19.36,F02=1,NPV,I=20%,CPT=21.4784 这样算是哪里出错了？

第五题：请问在完全竞争市场，视频中说是MR=AR=P，为什么这道题又是MC=AC=P呢？

无论是标准正态分布，还是t分布，它们的表为什么可以用来查非正态分布的情况？

老师，能讲解下这道题吗？题干也没太看懂，特别是红线部分

01.单选题 已收藏 标记 纠错 An exchange rate: A is most commonly quoted in real terms. B is the price of one currency in terms of another. C between two currencies ensures they are fully convertible. 查看解析 下一题 正确答案B 您的答案B本题平均正确率：81% Nominal and real exchange rates难度：一般 推荐：      答案解析 The exchange rate is the number of units of the price currency that 1 unit of the base currency will buy. Equivalently, it is the number of units of the price currency required to buy 1 unit of the base currency. 问：A quoted是名义的吧？C表述有不对的地方吗？

老师您好，能在仔细讲一下这道题吗？我选择B。美式期权在到期前不行权，公式为max(0，present value of strike price-S)，若在到期行权，则为max(0，X-S)，所以最大值应该是max(0，X-S）啊？不清楚哪里错了，请老师指点。

为什么Wa=sigma p/sigma a？

老师，请问SG&A和COGS有什么区别呢，SG&A是什么意思

11.单选题 已收藏 已标记 纠错 The "per unit contribution margin" for a product is $16. Assuming fixed costs of $20,000, interest costs of $3,000, and taxes of $2,000, the operating breakeven point (in units) is closest to: ? 这个题The operating breakeven point=fixed costs/contribution margin=$20000/$16=1250.这里怎么理解

1.6-1.2是什么