does this how does this in an ideal case work at all right so let's say I have two distribution a and B and they are very simple categorical distributions that only have three possible values a 1 a 2 a 3 I'm just going to draw some frequency here right so and then I'm going to do the same thing for B so this is probability mass function all right so so based on let's say we have a deterministic mapping that means like each of the a1 has each of the a has to map to some B and each of the B has to map to some a then like based on