Probably not. They already know the outcomes and don't seem to care. However 71% seems like a very low number... Does that mean that in 7 out of 10 cases the s

Probably not. They already know the outcomes and don't seem to care. However 71% seems like a very low number... Does that mean that in 7 out of 10 cases the system guesses correctly if the patient is smoker or not? That's not really impressive IMHO. What am I missing?