Talk:Projectile Dispersion Classifications
"then the general bivariate normal equation becomes the Hoyt distribution" is a bit misleading. The distribution of (h,v) coordinates is assumed to be bivariate normal. Then the Hoyt distribution is the (univariate) distribution of the distances (radial error) of each point to the true COI.
Likewise, "special case is the Rayleigh Distribution" should make more explicit that the Rayleigh distribution concerns the distances of each point to the true COI.