A key recommendation for controlling the spread of COVlD1 9 is to "test, test, testl". If we were able to test everyone using a test that was both 100% sensitive and specific for the disease, we would have no falsepositive [wrong identification of people without the infection) and no falsenegative (cases of infection that are missed) though no test is perfect. Based on data collected on 1,000,000 people so far, it is known that: For people who are infected with COVlD'IQ virus, 98.8% of them test positive. For people who have symptoms but are not infected with the COVlD19 virus, 2.7% of them test positivewhich is known as false positive It is estimated that currently, around 0.3% of people have been infected with the virus. Imperfect Testing Positive results Negative results Total COVID-19 A B C NON-COVID-19 D 970,081 997,000 Total 29,883 970,117 1,000,000 Calculate the values for A, B, C and D 1. (1 mark) A = X 2. (1 mark) B = X 3. (1 mark) C = X 4. (1 mark) D = X