Refer to the table which summarizes the results of testing for a disease if one

Question

Refer to the table which summarizes the results of testing for a disease if one of the results is randomly selected, what is the probability that it is a false negative (test indicates the person does not have the disease when in fact they do)? Round to the nearest thousandth. What does this probability suggest about the accuracy of the test? 0.013; The probability of the error is low so the test e fairly accurate 0.502; The probability of the error is high so the test is not very accurate 0.034, The probability of the error is low so the test re fairly accurate 0.042. The probability of this error is low so the test fairly accurate

Explanation / Answer

There are only 4 cases where even if the person has a disease it shows no disease. Total cases are (144+4+13+180)=341

Thus answer is A) 4/341

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