1. A classifier is tested on a set of 40 disease samples and 60 healthy samples. The classified yielded a positive outcome for 54 samples which included 35 of the true disease samples. Calculate the sensitivity, specificity, PPV, NPV, and accuracy for this test.
2. A classifier is tested on a set of 40 disease samples and 60 healthy samples. The classified yielded a negative outcome for 54 samples of which included 52 were true negatives. Calculate the sensitivity, specificity, PPV, NPV, and accuracy for this test.