Now, let's put some reality into your stirring of the drum. Some regions of the drum will have more blue than it has red marbles or vise versa. Cities, states, zip codes, land lines, area codes, time of day, internet providers, caller ID, etc., and more, can all alter the mix within the drum. It is very easy to either intentionally or inadvertently focus your sample on one or the other of these "hot spots". You can even do this without the people actually taking the samples knowing. You can do it without even knowing it yourself. Some pollsters might do this intentionally.
That was an impressive analysis.
I always like to learn something from FR, and I just did. Thank you.