There’s been much debate about lateral flow tests – their accuracy depends on context and the theories of a 18th-century cleric
Maths quiz. If you take a Covid test that only gives a false positive one time in every 1,000, what’s the chance that you’ve actually got Covid? Surely it’s 99.9%, right?
No! The correct answer is: you have no idea. You don’t have enough information to make the judgment.
