Isn't this obvious? In some categories, certainty and percentages make a lot of difference--surgeries, accidents. In some, they don't--surveys, grades. It jus

Isn't this obvious? In some categories, certainty and percentages make a lot of difference--surgeries, accidents. In some, they don't--surveys, grades. It just depends on the category. This is akin to saying something as obvious as more percentages are more than less percentages.