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What is the probability that the person

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A pharmaceutical company is testing a new test for HIV. The company designed an experiment with a total of 1000 individuals. 500 of them are HIV positive and 500 are not.The test results are given in the table below.

Given that a person tests negative, what is the probability that the person actually is HIV positive?

Test Positive Test Negative Row Sum

HIV positive 380 120 500

HIV negative 50 450 500

Column Sum 430 570 1000

Reference no: EM132195809

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