Well, that's going to be 16%. We just figured that out. And you could have already known, just without even knowing the empirical, just looking at a normal distribution, that this entire area, that part B is a subset of part A, so it's going to be a smaller number. So if you just had to order things, you could have made that intuition, but it's good to do practice with the empirical rule. Now, part C. They want to know what's the mean. Well, that's the easiest thing. The mean of a standard normal distribution, by definition, is 0.