老師53題請問如何解答呢 看答案講解不理解呢
偏度,峰度
老師幫我列下式子嗎,我怎么算都對不上答案
老師您好n我一直有個問題n債券定價是未來現(xiàn)金流折現(xiàn)求和n這不就意味著投資者實際上沒有賺到超額的收入嗎n只是將資金進(jìn)行了保值對嗎
Suppose you own a liquid financial asset that will pay you $100,000 in 10 years from today. Your daughter plans to attend college four years from today, and you want to know what the asset’s present value will be at that time. Given an 8 percent discount rate, what will the asset be worth four years from today? 請問答案是$87655.3223嗎?
A選項,怎么理解,謝謝!
C選項什么意思?沒有看懂,謝謝!
老師問一道題 Consider two currencies, the VKN and the PKR. The PKR is trading at an annual premium of 2.3% relative to the VKN in the forward mkt. The 1year risk -free PKR rate is 3%. If no arbitrage opportunities are available ,the current 1 year risk free VKN interest rate in closest to? A 0.7% B 2.3% C 5.3% 老師,我看不懂這里的表述,什么是annual premium? 這里的知識點是什么?
1.為什么選b 2.condition of probility function沒理解 請解釋一下,謝謝!
1.答案沒懂 2.感覺不明白,joint probability function 請詳細(xì)解釋一下,謝謝!
請解釋一下,全概率公式的邏輯,和如何運(yùn)用,謝謝!
離散型隨機(jī)變量為什么不是limited
p188,cv一定是正數(shù)嗎?可以是負(fù)數(shù)嗎,比如說這里雙尾,k是正負(fù)1.96,所以cv是1.96還是正負(fù)1.96? step4中要比較|ts|和cv大小,題目給出了ts=1.58小于1.96所以是fail to reject H0,所以是要比較|ts|和正數(shù)碼cv的大小嗎?
為什么15:54時候,既然設(shè)Ha:u大于170(我認(rèn)為是真的),觀測到樣本平均值x拔=178,為什么老師畫圖的時候又把u=170畫在函數(shù)正中間呢?我也不理解為什么reject落在右邊,這老師根本沒講清楚,只是把175頁里面的表格套進(jìn)去運(yùn)用
老師,第18題麻煩講一下,謝謝
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