The NIH is creating a test for the Flu virus. The incidence of a Flu is low, 3 percent in the general population. There is a trial version, but it sometimes misses the disease. The probability of a false negative is 3 percent. Similarly, someone who does not have the Flu, will sometimes get a positive reading. The probability of this is 30 percent. Fill in the tree diagram and ... P(D and positive), P(D and negative), P(No D and positive), P(No D and negative)