问一道题：NO.PZ2020010304000046 [ FRM I ]

NO.PZ2020010304000046 问题如下 Whare three metho to evaluate a Vmol of a portfolio? First, the exastribution thcomputes the exastribution of the number of Vviolations (HITs) over some time perio Secon the asymptotic methothexamines the average number of violations anuses the CLT to constrithe asymptotic stribution. Finally, the likelihooratio thexploits the Bernoulli stribution thunrlies the 0-1 HIT variables. 第三点提到的the 0-1 HIT variables 什么， hit 是什么缩写， 本章的讲义上没有找到这题对应基础课是哪部分的呢，看讲义不是在假设检验这章学的。