a certain virus infects one in every 600 people. a test used to detect the virus in a person is positive 90% of the time if the person has the virus and 10% of the time if the person does not have the virus. (a) find the probability that a person has the virus given that they have tested positive. $.0148026316$correct (b) find the probability that a person does not have the virus given that they have tested negative.
