A certain virus infects 3% of a population. A test has been…

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Question Answered step-by-step A certain virus infects 3% of a population. A test has been… A certain virus infects 3% of a population. A test has been developed to detect the virus in a person. A person tests positive 94% of the time if the person has the virus ( i.e., 94% sensitivity) and negative 92% of time if the person does not have the virus (i.e., 92% specificity). Assume that a person is chosen randomly from the population to take a test. The probability tree for the question is given below. Image transcription textVirus Test P( V and + ) = 0.0282 0.94 V 0.03 0.06 P( V and – ) = 0.0018 O P( V and + ) = 0.0776 0.97 0.08 0.92P( V and – ) = 0.8924 Q a) Find the probability of a false positive, P( + | V) – b) If a randomly selected personfrom the community tests positive, what is the probability that the person does not have the virus… Show more… Show more Math Statistics and Probability STAT 2263 Share QuestionEmailCopy link Comments (0)