Please Answer

Compute the kappa statistic given the following confusion matrix. Predicted class a b C total Actual a 80 10 10 100 Class b 50 40 10 100 c 20 0 30 50 total 150 50 50 (a) What is the overall accuracy of the model? (b) What is the kappa statistic? Lift factor Suppose that when you use Naive Bayes and sort the probabilities from highest to lowest, you get the following order for yes and no: 0.90 0.80 ... yyynnynynyyynnynynyynnynyn ... Suppose that the sample size is 200, and the overall P(yes) = 0.2 What is the lift factor for NB when the sample size is 10%