A bank has designed to establish the credit rating of a loan application If the persons who

Question:

A bank has designed to establish the credit rating of a loan application If the persons who default (d) 90% fail the test. (F)Of the persons who will repay the bank (ND) 5% fail the test Furthermore it is given that 4% of the population is not worthy of credit. Given that someone failed the test what is the probability that the he will actually will default.