~/math / Bayes
A positive test
mediumA disease affects 1% of people. A test catches 90% of sick people and wrongly flags 5% of healthy people. Someone tests positive. What is the probability they're sick?
~/math / Bayes
A disease affects 1% of people. A test catches 90% of sick people and wrongly flags 5% of healthy people. Someone tests positive. What is the probability they're sick?