Financial Risk Manager Part 1
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The model that is most likely to have a higher accuracy and higher precision, respectively, is:
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Community
TTanishq
A
Model A, Model B
B
Model B, Model A
C
Model A, Model A
D
Model B, Model B
Explanation:
Explanation
Model Accuracy Calculation
Model accuracy measures the overall correctness of the model:
- Model A accuracy = (TP + TN) / (TP + TN + FP + FN) = (900 + 100) / (900 + 100 + 50 + 50) = 1000 / 1100 = 0.909
- Model B accuracy = (TP + TN) / (TP + TN + FP + FN) = (870 + 120) / (870 + 120 + 80 + 30) = 990 / 1100 = 0.900
Model A has higher accuracy (0.909 vs 0.900)
Model Precision Calculation
Model precision measures the accuracy of positive predictions:
- Model A precision = TP / (TP + FP) = 900 / (900 + 50) = 900 / 950 = 0.9474
- Model B precision = TP / (TP + FP) = 870 / (870 + 80) = 870 / 950 = 0.9158
Model A has higher precision (0.9474 vs 0.9158)
Conclusion
Both accuracy and precision are higher for Model A, making Model A, Model A the correct answer.
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