如果是跟统计软体有关请重发文章 如果跟论文有关也烦请您重发文章 文章类别是为了帮助大家搜寻资料与解答，造成不便之处请见谅 我在做一题统计问题不会做，可否请各方高人帮忙解答？题目如下： A customer has approached a bank for a loan. From the past experience, the bank believes there is a 10% chance that the customer will default on the loan. The bank can run a credit check on the customer. The credit check will yield either a favorable or an unfavorable report. Historical information shows that for those default customers, favorable reports were received 1 out of 50 of the time. On the other hand, for those customers that were not default, favorable reports were received 95 out of 100 of the time. If a favorable report is received, what is the probability (to 4 decimal places) that the customer will default on the loan? {Hint: Construct a contingent table of the above problem first.} 小弟粗略翻译了一下中文意思大概是这样： 一个顾客去问银行借钱，根据过去经验，银行认为这家伙有10%机会不还钱。 银行可以给这人客做一个信用评估，然後这个评估会产生一个好的或是一个不好的报告， 以过去的数据统计出，对於那些会逃债的人客。他们每50个报告只有1个是好的报告， 而不会逃债的，是每100个报告有95个都是好的，现在我们对这位客人做信用评估， 那麽请问如果他得出一个好的报告，他结果会逃债的机率是多少？ --

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