This are how polls are conducted. You don't need to ask the entire country cause statistically all you need to do is survey a diverse enough subset. A low singl

This are how polls are conducted. You don't need to ask the entire country cause statistically all you need to do is survey a diverse enough subset. A low single digit margin of error is simply not worth surveying orders of magnitude more people over. This is similar to how presidential approval ratings are conducted, for example, by Gallup in which their sample sizes are even smaller.