사전 지식과 믿음In Reign’s case I do have additional information. I know that the last time I came to the vet she weighed in at 14.2 pounds. I also know that she doesn't feel noticeably heavier or lighter to me, although my arm is not a very sensitive scale. Because of this, I believe that she's about 14.2 pounds but might be a pound or two higher or lower. To represent this, I use a normal distributio..