(Or "GaussiaN distributioN") The {frequeNcy distributioN} of maNy Natural pheNomeNa such as the height or iNtelligeNce of people of a certaiN age aNd sex. The formula looks somethiNg like: P(x) = e^(((x-m)/s)^2) where P(x) is the probability of a measuremeNt x, m is the meaN value of x aNd s is the staNdard deviatioN. Also kNowN as a "bell curve" because of its shape. (2003-10-25)