[問題] 請教一題統計的問題：
如果是跟統計軟體有關請重發文章
如果跟論文有關也煩請您重發文章
文章類別是為了幫助大家搜尋資料與解答，造成不便之處請見諒
我在做一題統計問題不會做，可否請各方高人幫忙解答？題目如下：
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.}
小弟粗略翻譯了一下中文意思大概是這樣：
一個顧客去問銀行借錢，根據過去經驗，銀行認為這傢伙有10%機會不還錢。
銀行可以給這人客做一個信用評估，然後這個評估會產生一個好的或是一個不好的報告，
以過去的數據統計出，對於那些會逃債的人客。他們每50個報告只有1個是好的報告，
而不會逃債的，是每100個報告有95個都是好的，現在我們對這位客人做信用評估，
那麼請問如果他得出一個好的報告，他結果會逃債的機率是多少？
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 116.49.99.170
推
02/01 23:38, , 1F
02/01 23:38, 1F
討論串 (同標題文章)