金程問(wèn)答
An analyst creating a dataset composed largely of product reviews would most likely classify the data sources as generated by: A. sensors. B. individuals. C. business processes.這是什么知識(shí)點(diǎn)
一般TWRR大還是MWRR大
截圖1中的標(biāo)黃部分的數(shù)據(jù)，我輸入金融計(jì)算器后，得出的T/Y并不是8.4，而是如截圖2所示的0.3569，這是為什么？我哪個(gè)鍵摁錯(cuò)了？
chi square只有單側(cè)拒絕域？
The best approach for creating a stratified random sample of a population involves:A.drawing an equal number of simple random samples from each subpopulation.B.selecting every kth member of the population until the desired sample size is reached.C.drawing simple random samples from each subpopulation in sizes proportional to the relative size of each subpopulation.老師AB為什么不對(duì)
請(qǐng)問(wèn)我的金融計(jì)算器是出了什么問(wèn)題？我按照截圖1中標(biāo)黃的數(shù)據(jù)，輸入金融計(jì)算器后，顯示的是截圖2中的RST 0.00？并沒(méi)有跳出PV=-1,413,393.94這個(gè)數(shù)？我是按錯(cuò)什么鍵了嗎？
Which of the following errors would most likely be a result of overfitting a machine learning model? A. Inability to recognize relationships within the training data B. A predictive model that treats true parameters as if they are noise C. The discovery of unsubstantiated patterns that lead to prediction errors為什么A不對(duì)c對(duì)
截圖1中的標(biāo)黃部分的數(shù)據(jù)，我輸入金融計(jì)算器后，得出的PV并不是1051，而是如截圖2所示的819.60，這是為什么？我哪個(gè)鍵摁錯(cuò)了？
老師講解一下這道題
TWRR不是按照幾何平均算的嗎?為什么不開(kāi)根號(hào)，之前的題我記得都是開(kāi)的啊
為什么pmt是3.5，fv是100呢？沒(méi)看到題目上有說(shuō)呢
為什么這道題我用計(jì)算器的data和stat算出的結(jié)果是a
老師，我這里算出來(lái)DBD是-88
羅伊第一比率越大越好嗎？其中自己求的R是用獲利除以自有資金？
怎么能用算出的61330調(diào)整成b選項(xiàng)啊，應(yīng)該乘什么
程寶問(wèn)答
