The fraud management solution is based on a scoring model. For example, assume the scores range from 1 to 10, with 10 being the highest probability that the transaction is fraudulent. What cutoff score would you use to decide to approve a purchase? What cutoff score would you decide to approve a purchase? What cutoff score would you use to decide not to approve a purchase? If those cutoff scores are not the same how do you suggest those falling between scores be treated?