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You are performing the model evaluation of a classifier you trained

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You are performing the model evaluation of a classifier you trained. The objective of the classifier to predict if the customer will purchase the given item. You are able to derive the confusion matrix on the testing data. What is (approximate) accuracy, sensitivity and specificity ? Confusion Matrix Actual Predicted Yes No Yes 80 425 No 112 859 O Accuracy = 0.87, Sensitivity = 0.92, Specificty = 0.79 O Accuracy = 0.87, Sensitivity = 0.79, Specificty = 0.92 O Accuracy = 0.13, Sensitivity = 0.92, Specificty = 0.08 O Accuracy = 0.13, Sensitivity = 0.13, Specificty = 0.08