If you live in Haiti or DR and the weather experts say their models for a coming storm show tracks that look something like this:
http://minnesota.publicradio.org/col...20tracks.shtml
What do you do? Do you look at all the model tracks and decide that chances are you going to get hit, or do you decide that there are a few which miss and so hurricane models are unpredictable, inaccurate nonsense and go to the beach?
Similarly different polls use different assumptions. Hence none are going to be right on target all the time, BUT if there are enough of them which are known to have a decent track record then they usually tell a story when viewed as a whole.
Nobody uses polls more than politicians running for office.Why is Obama not wasting money in Indiana? He won it last time? Why is Romney pulling resources out of PA even though some claim he has a chance to win?
Answer: Internal polling.
http://minnesota.publicradio.org/col...20tracks.shtml
What do you do? Do you look at all the model tracks and decide that chances are you going to get hit, or do you decide that there are a few which miss and so hurricane models are unpredictable, inaccurate nonsense and go to the beach?
Similarly different polls use different assumptions. Hence none are going to be right on target all the time, BUT if there are enough of them which are known to have a decent track record then they usually tell a story when viewed as a whole.
Nobody uses polls more than politicians running for office.Why is Obama not wasting money in Indiana? He won it last time? Why is Romney pulling resources out of PA even though some claim he has a chance to win?
Answer: Internal polling.
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