I have wondered this myself for many years of watching. I have a sneaky feeling that the contestants are already chosen from the waiting line outside the studio. Based on their personality, energey, age, weight, and nationality.
Outwise, the show would have only blah contestants and not equally chosen.
This is one project choice a computer cannot make. It has no heart.
Everybody in the audience gets briefly interviewed, one by one, basic questions, before you go into the studio. They choose people who are interesting, seem energetic and fun and maybe a little unique. Of course they don’t know they’ve been chosen until they’re told to come on down!!!!!!!!!!!!!!I have been twice and haven’t been chosen. OBVIOUSLY I’M BORING.