為什么是n-2，這道題也沒翻譯目標(biāo)
沒懂這道題
算數(shù)幾何調(diào)和平均值的關(guān)系
The distribution of all the distinct possible values for a statistic when calculated from samples of the same size randomly drawn from the same population is most accurately referred to as:A.a discrete uniform distribution.B.a multivariate normal distribution.C.the sampling distribution of a statistic.老師講一下這道題這幾個選項(xiàng)唄
A tree diagram is most likely used when dealing with investment problems that involve outcomes that are:A.mutually exclusive.B.independent at each node.C.unconditional at each node.老師這個二叉樹哪個部分是無條件的哪個是獨(dú)立的啊
When working backward from the nodes on a binomial tree diagram, the analyst is?most likely attempting to calculate:A.the number of potential outcomes.B.the probability of a given scenario.C.an expected value as of today.老師講解一下這三個選項(xiàng)分別用于什么情況啊
老師您好，請問怎么清空攤銷模式里的數(shù)據(jù)，我按了【2nd 】【clr work】后，為什么數(shù)據(jù)還在
treasury bond/notes/ bills 是不是都沒有Maturity risk premium
The computerized buying and selling of financial instruments, in accordance with pre-specified rules and guidelines, is best described as: A. a dark pool. B. robo-advising. C. algorithmic trading.這是什么知識點(diǎn)
為啥用e的指數(shù)計(jì)算
為什么The variance of the error term is the same for all observations.對了？不應(yīng)該是方差穩(wěn)定嗎，怎么能值相同
老師歸類一下非參數(shù)檢驗(yàn)適合的場景唄
A pooled estimator is used when testing a hypothesis concerning the:A.equality of the variances of two normally distributed populations.B.difference between the means of two approximately normally distributed populations with unknown but assumed equal variances.C.difference between the means of two at least approximately normally distributed populations with unknown and assumed unequal variances.這道題沒太明白啥意思
A population has a non-normal distribution with mean μ and variance σ2. The sampling distribution of the sample mean computed from samples of large size from that population will have:A.the same distribution as the population distribution.B.its mean approximately equal to the population mean.C.its variance approximately equal to the population variance.為啥A不對，大樣本不是可以看成正態(tài)嗎，為什么b對c不對
為什么選2不選1
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