Secessionist demographics

[tracerbullet]

700... out of 312.8 million (roughly).

Yep. Great sample size.

Obviusly this is irony, so I wonder what's your argument? How far off do you think the results are, if they did a good job of randomly selecting people?

margin of +/- 3.7 points.

This is the correct answer, by the way, +/- 3.7%. IMO that's enough to give you a feel for what people are thinking. If you insist on 3%, or 2%, or better, fine. But if you think the results are off 20, 30, or 40% you are quite wrong. Again - assuming they did a good job selecting people polled.