Rather than “I don’t know”, I like to use either “no data” or “insufficient data”. I am enough of a geek that it is considered—for me—a “reasonable utterance”, and it’s easier to qualify a quantitative answer if I’m later pressed. And BTW, not having seen that tree, zero is much better lower bound.
Rather than “I don’t know”, I like to use either “no data” or “insufficient data”. I am enough of a geek that it is considered—for me—a “reasonable utterance”, and it’s easier to qualify a quantitative answer if I’m later pressed. And BTW, not having seen that tree, zero is much better lower bound.
I use “Insufficient data for meaningful answer”, which is apposite and also a nice sci-fi shout-out.