Draw the ROC curve ?

Grade: out of 5 Instructions: Closed notes and book, no computer or calculator allowed. Question: Assume that we have used a classifier, for instance logistic regression, for classifying reviews about certain service. The reviews can be classified as Pos (positive), Neg (negative) and Neu (neutral). We test our classifier on 10 reviews for which actual classes are given. The testing has the following results: Review Actual Predicted R1 Pos Pos R2 Pos Pos R3 Pos Pos Pos Neu Neg Neg Neg Neu R7 Neg Neg R8 Neu Pos R9 Neu Neu R 10 Neu Neu R4 Rs R6 Required: 1. Construct three confusion matrices for the three classes.(i.e., Pos, Neg, Neu) 2. Compute precision, recall, accuracy and F1 for these classification results for all three classes