Question

Overwhelmed with their success in diagnosing white lung in teachers, public health officials decided to administer the test to all schoolchildren, even though only one child in 1,000 has contracted the disease. The test correctly diagnoses the presence of white lung in 98% of the people who have it and correctly diagnoses its absence in 96% of the people who do not have it. (Round your answers to four decimal places.)

(a) Find the probability that a schoolchild whose test results are positive actually has white lung.
   answer: 4.72% Incorrect

(b) Find the probability that a schoolchild whose test results are negative does not have white lung.

Answer 99% Incorrect
(c) Find the probability that a schoolchild whose test results are positive does not have white lung.

Answer 95.27% Incorrect
(d) Find the probability that a schoolchild whose test results are negative actually has white lung.

Answer 0.01% incorrect

Please help the previous answers provided were wrong

Answer 1

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