How do I find the notation of the 5% who do have tuberculosis? Using the same data, what is the probability of an adult getting a POS result and truly NOT having tuberculosis?

Tests for tuberculosis like all other diagnostic tests are not perfect. QFTG is one of such tests for tuberculosis. Suppose that for the population of adults that is taking the test, 5% have tuberculosis. The test correctly identies 74.6% of the time adults with a tuberculosis and correctly identies those without tuberculosis 76.53% of the time. Suppose that POS stands for the test gives a positive result and 5 means that the adult really has tuberculosis. Represent the "5%" using notation. C? PS) 573 P(POS) 9 PS | P05) C? P(POS | 5)