Question: what are the odds of a false positive?
Answer: Out of the 3,096 tests that report positive results, 2,997 (97%) are false positives, and only 99 (3%) are correct. The probability that you actually have D, when you're given a positive test result, is just 3%, so we can say that the positive predictive value (PPV) of this test is 3% — for a test that is 98% accurate!