chen2019-10-05 21:08:54
老师,第36题的c选项,那个概率不就是第一年没有违约,第二年违约的概率么?和34题问的区别在哪呢?
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Cindy2019-10-06 17:33:20
同学你好,国庆在家答疑很不方便,请问可以贴上具体的题目吗?
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就是the probability when a company defaults in year two given surviving the first year 和 the probability of joint event of survival through the first year and default in the second year.这两个的概率有什么区别?
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同学你好,the probability when a company defaults in year two given surviving the first year,这是一个条件概率,求得是在第一年不违约的前提下,第二年违约的概率,注意关键词given
the probability of joint event of survival through the first year and default in the second year.这是一个联合概率,求的是第一年不违约,并且第二年违约的联合概率,


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