It is given that only 0.1% of a large population have COVID infection. In this population, the reliability of COVID RTPCR-test is specified as follows : For persons having COVID, 90% of the test detects the disease but 10% goes undetected. For persons not having COVID, 99% of the test is judged COVID negative but 1% are diagnosed as COVID positive. Based on the above informations, answer the question : The probability that the selected person will be diagonosed as COVID positive is :

Question

Option 1: 1008/10000

Option 2: 803/100000

Option 3: 1089/10000

Option 4: 1089/100000

AfterBoards · Accepted Answer

The answer is '1089/100000'. View full solution:

CUET Mathematics 2022 17 Aug Shift 2 PYQs

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