For example, if it were the case that 1% of the public were "medical professionals", and 99% of the public were not "medical professionals", then the base rate of medical professionals is simply 1%.
例えば、一般住民の1%が“医療専門職”であり、残りの99％は“医療専門職”ではないならば、医療専門職の基準率は単に1%になる。