Hacker Newsnew | past | comments | ask | show | jobs | submitlogin

related problem:

a population has a 10% incidence of condition X. A test exists that is 90% accurate.

1) What is the expected percentage of positive test results? 2) if a person tests positive, what is the probability that they actually have the condition? 3) if a person tests negative, what is the probability that they are actually free of the condition?



By "90% accurate", you mean "10% false positive rate and 10% false negative rate", correct?


correct, I should have made that explicit




Consider applying for YC's Winter 2026 batch! Applications are open till Nov 10

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: