Here's an interesting little puzzle for everyone to have a hard think about.
I will post a solution to this on Friday, until then if you genuinely already know the answer, please keep it to yourself and let others have a go -
Suppose we have a diagnostic test for a particular disease which is 99% accurate.
A person is picked at random and tested for the disease.
The test gives a positive result. What is the chance that the person actually has the disease?
RJT.
I will post a solution to this on Friday, until then if you genuinely already know the answer, please keep it to yourself and let others have a go -
Suppose we have a diagnostic test for a particular disease which is 99% accurate.
A person is picked at random and tested for the disease.
The test gives a positive result. What is the chance that the person actually has the disease?
RJT.