题目 The lowest boundary of a normal distribution is: 选项 A.-1. B.-∞. C.Zero. 答案 B 解析 By definition, a true normal distribution has a positive probability density function from [...]
题目 A limitation of Monte Carlo simulation is: 选项 A.its failure to do “what if” analysis. B.that it requires historical records of returns C.its inability to independently specify [...]
题目 When making a decision in investments involving a statistically significant result, the: 选项 A.economic result should be presumed meaningful. B.statistical result should take priority over [...]
题目 Otema Chi has a spreadsheet with 108 monthly returns for shares in Marunou Corporation. He writes a software program that uses bootstrap resampling to create 200 resamples of this Marunou data [...]
题目 Which of the following assets most likely requires the use of a multivariate distribution for modeling returns? 选项 A.A call option on a bond B.A portfolio of technology stocks C.A stock in [...]
题目 A pooled estimator is used when testing a hypothesis concerning the: 选项 A.equality of the variances of two normally distributed populations. B.difference between the means of two at least [...]
题目 The best approach for creating a stratified random sample of a population involves: 选项 A.drawing an equal number of simple random samples from each subpopulation. B.selecting every kth [...]
题目 An analyst wants to forecast the company’s net profit margin (NPM) based on its research and development expenditures scaled by revenues (RDR), using the model provided in following [...]
题目 The value of the cumulative distribution function F(x), where x is a particular outcome, for a discrete uniform distribution: 选项 A.sums to 1. B.lies between 0 and 1. C.decreases as x [...]
题目 An analyst is researching the relationship between corporate earnings growthand stock returns. Specifically, she is interested in whether earnings revisionsaffect stock price returns in the [...]
