Absolutely, yes, and if you're in an organisation that's mature enough to handle ranges responsibly and not treat the lower number as a prediction, that's absolutely the best way to do it.
>>regula+(OP)
Whenever I speak to people who would do that, I leave the lower end of the range unspecified. (I.e. instead of 90 % between x and y, I phrase it as 95 % less than y.)