
Answer-first summary for fast verification
Answer: Model A, Model A
## 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.
Author: Tanishq Prabhu
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