The reliability of a Covid-19 test is specified as follows:
Of people having Covid-19 , 90% of the test detect the disease but 10% go undetected. Of people free
of Covid-19 , 99% of the test are judged Covid-19 negative but 1% are diagnosed as showing Covid-19
positive .
From a large population of which only 0.1% have Covid-19 , one person is selected at random, given
the Covid-19 test and Pathologist reports him/her as Covid-19 positive.
Based on the above information , answer the following questions:
(i) What is the probability of the person to be tested as Covid-19 positive given that he is actually
having Covid-19 ?
(a) 0.001 (b) 0.1 (c)0.8 (d) 0.9
please explain how the answer came...I will surely make you brain list !!
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Answer:
the probability of the person to be tested as covid 19positive given that he is actually is 0.9
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