The NIH is creating a test for the Zika virus. The incidence of a Zika is low, 10 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 Zika, will sometimes get a positive reading. The probability of this is 10 percent. Fill in the tree diagram and ... Answer in percent to 2 decimal places. Marginal Probabilities Conditional Probabilities 97 P(positive |D) False Joint Probabilities 2.91 P(D and positive) 10 00% P(D) 90 3 negative P(negative |D) 10 False Positive P(no D) P(positive | no D) 90 0.09 P(D and negative) 1 P(no D and positive) 9 P(negative | no D) P(no D and negative) Calculate the probability that a positive test result means someone has Zika. 92 % Submit Question