By examining the chest X-ray, the probability that TB is detected when a person is actually suffering is 0.99. The probability of an healthy person diagnosed to have TB is 0.001. in a certain city, 1 in 1000 people suffers from TB, A person is selected at random and is diagnosed to have TB. Then, the probability that the person actually has TB is

By examining the chest X-ray, the probability that TB is detected when

1.	By examining the chest X-ray, the probability that TB is detected when a person is actually suffering is 0.99. The probability of an healthy person diagnosed to have TB is 0.001. in a certain city, 1 in 1000 people suffers from TB, A person is selected at random and is diagnosed to have TB. Then, the probability that the person actually has TB is
A.	\[\frac{110}{221}\]
B.	\[\frac{2}{223}\]
C.	\[\frac{110}{223}\]
D.	\[\frac{1}{221}\]
Answer» B. \[\frac{2}{223}\]

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