題組內容
6. A bank constructs a computer system for reviewing small-size loans. The following data discloses the cases reviewed by the system:
Total loan cases: 54,231
Passed cases by computer review: 49,082
Non-default cases after computer review: 46,880
Default cases after computer review: 2,202
Cases rejected by computer system: 5,149. Then the cases are sent to be reviewed by manually. Non-default cases after manual review: 4,585; default cases after manual review: 564.
(c) (14%) Calculate "Accuracy ratio", "Precision ratio", "Recall ratio", "False positive ratio", "False negative ratio", "F1-score".