8008試験無料問題集「PRMIA PRM Certification - Exam III: Risk Management Frameworks, Operational Risk, Credit Risk, Counterparty Risk, Market Risk, ALM, FTP - 2015 Edition 認定」
Which of the following statements is true in relation to a normal mixture distribution:
I. The mixture will always have a kurtosis greater than a normal distribution with the same mean and variance II. A normal mixture density function is derived by summing two or more normal distributions III. VaR estimates for normal mixtures can be calculated using a closed form analytic formula
I. The mixture will always have a kurtosis greater than a normal distribution with the same mean and variance II. A normal mixture density function is derived by summing two or more normal distributions III. VaR estimates for normal mixtures can be calculated using a closed form analytic formula
正解:B
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When modeling severity of operational risk losses using extreme value theory (EVT), practitioners often use which of the following distributions to model loss severity:
I. The 'Peaks-over-threshold' (POT) model
II. Generalized Pareto distributions
III. Lognormal mixtures
IV. Generalized hyperbolic distributions
I. The 'Peaks-over-threshold' (POT) model
II. Generalized Pareto distributions
III. Lognormal mixtures
IV. Generalized hyperbolic distributions
正解:A
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Which of the following statements is true:
I. Recovery rate assumptions can be easily made fairly accurately given past data available from credit rating agencies.
II. Recovery rate assumptions are difficult to make given the effect of the business cycle, nature of the industry and multiple other factors difficult to model.
III. The standard deviation of observed recovery rates is generally very high, making any estimate likely to differ significantly from realized recovery rates.
IV. Estimation errors for recovery rates are not a concern as they are not directionally biased and will cancel each other out over time.
I. Recovery rate assumptions can be easily made fairly accurately given past data available from credit rating agencies.
II. Recovery rate assumptions are difficult to make given the effect of the business cycle, nature of the industry and multiple other factors difficult to model.
III. The standard deviation of observed recovery rates is generally very high, making any estimate likely to differ significantly from realized recovery rates.
IV. Estimation errors for recovery rates are not a concern as they are not directionally biased and will cancel each other out over time.
正解:D
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