gergroy on 19 October 2012
are polls usually all over the place like this? I can't remember having polls that varied this dramatically in the last presidential race.
For example, marist came out with a poll of iowa showing the president up by 9 points yesterday, and today PPP has a poll out showing Romney up by one point, that is a 10 point spread between the two.
Now, since these polls supposedly have a margin of error of +-4 points, it is actually impossible for both of these polls to even be that accurate. So, how do these polls help if they can't even be accurate within their margin of error?
