Questions 1-3: A new drug for disease D has sensitivity (true positive rate) 68% and the specificity (true negative rate) is 85%. Suppose that there are 1285977 people living with disease D in a population of 320000000 people. 1. What is the probability a randomly selected person will have a positive test? 15% 11% O 21% O 23% O 19% 2. Given a randomly selected person has a positive test, what is the probability he/she actually has the disease D? O 6.82% O 4.82% O 3.82% 1.82% O 5.82% 3. Given a randomly selected person has a positive test, what is the probability he/she does not have the disease D? O 93.18% 96.18% O 94.18% 95.18% 98.18%