It would be all of this kind of stuff. You could also say, what's the probability we have less than 0.1 inches of rain? Then you would go here, and you would calculate, if this was 0.1, you would calculate this area. And you could say, what's the probability that we have more than 4 inches of rain tomorrow? Then you would start here, and you would calculate the area on the curve all the way to infinity, if the curve has area all the way to infinity. And hopefully that's not an infinite number, right? Then your probability won't make any sense.