頻率分布是指在統計分組的基礎上，將總體中各單位按組歸類整理，按一定順序排列，形成的總體中各單位在各組間的分布。在FRM二級考試中，關于頻率分布的例題有什么？下文是例題解析，一起了解一下！

Which of the following is false regarding frequency distributions of operational risk events and severity distributions of operational risk events? They:

A) Can be combined in a process known as convolution.

B) Generally follow the same distribution.

C) Can help the analyst ascertain the cause of operational losses.

D) Must account for interdependencies when aggregating across many processes.

答案：B【資料下載】點擊下載GARP官方FRM二級練習題

解析：Total risk is composed of frequency and severity.APoisson distribution is frequently assumed for the distribution of operational risk event frequency. The severity of each event often follows a different distribution, such as a lognormal.

These distributions can be combined into a single operational loss distribution in a process known as convolution. Separating losses into likelihood and severity allows the analyst to determine whether operational losses stem from low frequency high severity events or high frequency low severity events and aids diagnosis. If this analysis is repeated for multiple processes in the firm, which is necessary to estimate total operational risk using a bottom-up approach, then the analyst must consider correlations among the different processes.

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