Problem 1 (10 points) Consider the posterior probabilities obtained by applying a trained classification model on a test set with 10 instances. Plot the ROC curve. Instance True Class P(+A) + 0.61 2 + 0.03 3 0.68 4 0.31 + 0.45 + 0.09 = 0.38 - 0.05 + 0.01 10 0.04