爱考云 - 搜题找答案神器_海量试题解析在线查

题目 Let (C) be a random normal variable that characterizes the temperature in degree Celsius. Assume (C) has mean of 30.0 and standard deviation of 2.0. Let (F) be the corresponding temperature in [...]

题目 The student's t distribution is a function of 选项 A.Normal distribution B.Chi-square distribution C.Lognormal distribution D.Normal and chi-square distributions 答案 D 解析 Normal and [...]

题目 The following table summarizes the availability of trucks with air bags and bucket seats at a dealership.「huixue_img/importSubject/1564169388448419840.jpeg」What is the probability of [...]

题目 Assume the true distribution of returns is leptokurtic. If we assume normality when we calculate the VaR, then which of the following statements is true? 选项 A.The 95% VaR is overstated. [...]

题目 Which distribution does NOT tend to approximate the normal as one of its parameters increases? 选项 A.Bernoulli B.Binomial C.Poisson D.All of the above 答案 A 解析 Binomial tends to [...]

题目 A certain low-severity administrative (operational) process tends to produce an average of eight errors per week (where each week is five workdays). If this loss frequency process can be [...]

题目 A portfolio of bonds consists of five bonds whose default correlation is zero. The one-year probabilities of default of the bonds are: 1%, 2%, 5%, 10% and 15%. What is the one-year probability [...]

题目 Consider the following five random variables: A standard normal random variable; no parameters needed. A student's t distribution with 10 degrees of freedom; df = 10. A Bernoulli variable that [...]

题目 If Security A and Security B are positively correlated, and the price of Security A increases, then the price of Security B: 选项 A.will increase. B.will decrease. C.is most likely to [...]

题目 You are given that X and Y are random variables, and each of which follows a standard normal distribution with Covariance (X,Y) = 0.4. What is the variance of (5X + 2Y)? 选项 A.11.0 B.29.0 [...]