Medical records show that 0.01% of the general adult population not belonging to a high-risk group (for example, intravenous drug users) are HIV-positive. Blood tests for the virus are 99.9% accurate when given to some- one infected and 99.99% accurate when given to someone not infected. What is the probability that a random adult not in a high-risk group will test positive for the HIV virus?

0.019989%

Step-by-step explanation:

The probability that a random adult not in a high-risk group will test positive for the HIV virus is determined by the probability of them being HIV-positive (0.01%) and the test being accurate (99.9%), added to the probability of them being HIV-negative (100%-0.01%) and the test not being accurate (100%-99.99%):

The probability is 0.019989%.

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step-by-step explanation:

a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.