爱考云 - 搜题找答案神器_海量试题解析在线查

题目 Which visualization tool works best to represent unstructured, textual data? 选项 A.Tree-Map B.Scatter plot C.Word cloud 答案 C 解析 C is correct. A word cloud, or tag cloud, is a visual [...]

题目 A fixed-income analyst uses a proprietary model to estimate bankruptcy probabilities for a group of firms. The model generates probabilities that can take any value between 0 and 1.The [...]

题目 Florence Hixon is screening a set of 100 stocks based on two criteria (Criterion 1 and Criterion 2). She set the passing level such that 50% of the stocks passed each screen. For these stocks, [...]

题目 A tree-map is best suited to illustrate: 选项 A.underlying trends over time. B.joint variations in two variables. C.value differences of categorical groups. 答案 C 解析 C is correct. A [...]

题目 In probability theory, exhaustive events are best described as events: 选项 A.have a probability of zero. B.are mutually exclusive. C.include all potential outcomes. 答案 C 解析 ： C is [...]

题目 Which of the following is a potential problem with interpreting a correlation coefficient? 选项 A.Outliers B.Spurious correlation C.Both outliers and spurious correlation 答案 C 解析 C [...]

题目 Which of the following statements is most accurate? If the covariance of returns between two assets is 0.0023, then: 选项 A.the assets’ risk is near zero. B.the asset returns are [...]

题目 A manager will select 20 bonds out of his universe of 100 bonds to construct a portfolio. Which formula provides the number of possible portfolios? 选项 A.Permutation formula B.Multinomial [...]

题目 Which of the following risk premiums is most relevant in explaining the difference in yields between 30-year bonds issued by the US Treasury and 30-year bonds issued by a small private issuer? [...]

题目 Consider two variables, A and B. If variable A has a mean of －0.56, variable B has a mean of 0.23, and the covariance between the two variables is positive, the correlation between these two [...]