而且連續(xù)性概率取值要規(guī)定上下限的呀，這樣畫一個方格表示概率3我真是不懂。這個老師講基礎課還沒前導課講的明白，越聽越糊涂。跟講強化課一樣，都簡單一說就過了，每個知識點都聽完好幾遍也不懂…
概率密度函數不是只對應連續(xù)型嗎？怎么又考慮離散型了？本來畫了線圖還沒講又畫個柱形圖講了？太暈了這位老師講課，講題也是，直接往答案上一靠就完了……
expected standard deviation計算過程給下吧，對公式不理解
A call option on a stock index is valued using a three-step binomial tree with an up move that equals 1.05 and a down move that equals 0.95. The current level of the index is $190, and the option exercise price is $200. If the option value is positive when the stock price exceeds the exercise price at expiration and $0 otherwise, the number of terminal nodes with a positive payoff is: A. one. B. two. C. three. 請問老師: “the stock index is valued using a three-step binomial tree"是什么含義？以及這道問題如何求解。謝謝！
不會算
不會算??
老師你好！ 我印象中在某個章節(jié)里面講過股權日/除息日以及相互關系。想不起來在哪個章節(jié)%4???？梢蕴崾疚乙幌聠?？謝謝。
老師，您好。reading13中的課后習題，15題，我選擇是B，答案是A，為什么IPO的數量增加了還是熊市呢？公司在發(fā)行IPO的時候，不是在股票價格高的時候么？。第22題，kondratieff wave：18-year cycles、54-year cycles，答案要選54？18和54年怎么區(qū)分。第23題和25題，就更需要您講解了。謝謝??
為什么不能說自己的觀點？
打勾處不太懂
打勾的兩點為何違反？
老師，您好！能幫忙解答一下reading12的課后習題第八題么？為什么這個卡方分布的值要取0.95，df=9時的這個值：3.325。另外還希望老師能幫忙解答一下，兩個樣本是否有關聯(lián)如何設立假設；pooled estimate又該如何設立。
Andrew Mader, CFA, is an analyst with Metro Investment Services. During lunch with some of Metro's managers, Mader is told, "There are going to be major problems at Gebco (a firm that Metro had brought public last year). I was just over there and the place is just crawling with government inspectors.” Mader had just issued a report with a "buy" recommendation on Gebco last week. Mader should: A】not do anything because to do so would violate his obligation to preserve confidentiality. B】immediately issue a new report, but only after stopping by Gebco himself to corroborate the story. C】not do anything to avoid a violation of fair dealing. 這題我沒有看明白，和保密有什么關系，為什么答案是A，難道Gebco 成為了Metro公司的客戶？ 另外brought public 是什么意思
老師請教原版書equity部分 上角566頁下角202頁第14題和第16題?？戳舜鸢高€是不是很懂。謝謝
老師請教原版書equity部分 上角566頁下角202頁第14題和第16題。看了答案還是不是很懂。謝謝
金程問答
