That knight and princess moment was cute, ah this whole series is cute. I love how the random faceless high schoolers are just waving their arms around weirdly
I think it refers to how away from the avarage your kid is.
Thank you, I guess in context it means the kid is worse by some (maybe actually calculated by gaussian) measure (Than the mean which is about the average here). But um... Im trying to put into words why this kind of thinking is stupid, yet, it is so obvious, what I find actually stupid is how it still happens.