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3. Using the following table, which k should be used in the subsequent calculations? % Misclassification K 1 10.66666667 2 10.33333333 3 9.33333333 4 9.33333333 5 7 6 11.66666667 7 11.33333333 8 10 9 8.33333333 10 8.66666666 A. 8 B. 5 C. 6 D. None of the percentages should be used. 4. The chart below is a summary of the main results of a test data set representing the population observed purchasing a virtual digital assistant. What is the percent of the results that are incorrectly classified? Metrics Metric Value 212 88.5 Accuracy (#correct) Accuracy (%correct) Specificity Sensitivity (Recall) 0.88188 0.9 Precision 0.82453 F1 Score 0.88229 Success Class 1 Success Probability 0.5 Error Report # # Errors Class Cases % Errors 0 140 18 12.85 1 100 10 10 Overall 240 28 11.5 A. 12% B. 10% C. 12.85% D. 11.5%