ML functional performance metrics · Question 46 of 60
A model has predicted 50 cases as positive and achieves a precision of 80%. How many false alarms (false positives) does this contain?
1 answer is correct. Hard
Show answer
Answer
- A 10
Explanation
Precision = TP / (TP + FP). With 50 positive predictions (TP + FP = 50) and 80% precision, TP = 40. The remaining FP = 50 − 40 = 10 are false alarms.