As I understand the phrase, "99% accurate", this is correct. However, I gather that to statisticians this phrase could mean other things. I think the source o

As I understand the phrase, "99% accurate", this is correct. However, I gather that to statisticians this phrase could mean other things. I think the source of the ambiguity comes from whether or not everyone gets tested or something along those lines. To me the phrase should mean that when I test people who have the disease then 99% of the time I get a positive result and when I test people who don't have the disease then 99% of the time I get a negative result. That seems the most reasonable interpretation but I'm not a statistician.