">85% of answers are helpful & accurate"
People can usually tell if an answer isn't helpful, but not always that it isn't accurate. Depending on the context, 85% accurate might not be good enough.
People can usually tell if an answer isn't helpful, but not always that it isn't accurate. Depending on the context, 85% accurate might not be good enough.
Instead of using the lower bound, wouldn't it make more sense to say "85% of the 95% accurate answers are helpful"? Or perhaps "95% of the 85% helpful answers are accurate"?
In both cases, the number for "answers that are both helpful and accurate" is lower than 85%.