PandemicDiscrete Mathematics Level 3
In Mathland, there is a \(1/20000\) chance that any given person might have the deadly 'Super Flu'. Thankfully, it is possible test for the presence of the disease. If a person has the flu, a positive result is certain. However, there is a \(1\%\) chance of the test giving a false positive. Alice takes the test, and receives a positive result. Worried, she takes another test, and receives another positive result. Which is true of the following statements?