In which of the following industries are technological factors least likely a significant influence? A Oil services. B Confections. C Pharmaceuticals. 老师您好，我清楚地记得这个题在网课的时候，老师说选择A，然而这个是B

这个求方差的公式怎么一点印象都没有，有没有专门章节讲这个公式的？

在抽样时，一般是认为“样本均值是总体均值的无偏估计量”，不是说样本均值应该等于总体均值，而是说用样本均值估计总体均值时，认为样本均值可以代替总体均值

An investor who wants to estimate the enterprise value multiple (EV/EBITDA) of a company has gathered the following data: The company’s enterprise value is closest to: 这个题 的 debt 不考虑税 吗？ 我计算出来C

onsidering the following statement: "Use of P/E and other multiples for analysis is not effective because the multiples are based on historical data and because not all companies have positive accounting earnings." Which of the following is the correct description of the statement? A Inaccurate with respect to both historical data and earnings. B Accurate with respect to historical data and inaccurate with respect to earnings. C Inaccurate with respect to historical data and accurate with respect to earnings.

Data of AAA Corporation for the years 2005 to 2008. As of the date of the valuation in 2009, the forward-looking twelve-month P/E, P/CF, and P/S are, respectively, 9.6, 7.7, and 3.5. Based on the information provided, the analyst may reasonably conclude that AAA shares are most likely: 为什么是被高估的？从2009的三个数据，有点不理解

请问sale和revenue是否相同？即在利润表第一项是sale，是否也可用revenue？在课程和题目讲解的不同地方时不时的用sale和revenue，搞不清是不是相同

return generating models中文叫什么呢

老师您好，有个疑问，题中对于movie的随时间价格下降做了强调，所以我在想ending inventory should be lower too. is that right?

题目里面并没有给出表，去哪里查表？考试会出现这种情况吗？