Poll Average Details- MI US President - 2004-11-02 23:00:00

The Poll Average is a weighted and adjusted number.
[Mid Date Column] All times are calculated by the middle date of the poll if it spans multiple days.
A time window of 2 months prior to the most recent poll is used.
[Time Weight Column] Polls are weighted in the amount they contribute to the final results in a linear fashion in this time window - the newest poll has a weight of 1, a poll 30 days prior will have a weight of 0.5 and a poll 60 days out will have a weight of 0. If the same pollster has more than one poll in this time period, only the newest will be used.
[Internal Column] If a poll is marked as being an internal poll for one of the candidates, it's weight will be halved.
[Candidate Columns, Bias] OurCampaigns has calculated partisan bias figures for all Polling Firms based on data from final vote totals in races they have polled. These amounts are subtracted from the poll result - in the case the bias figure is negative it will effectively be added to the poll result and appear as two dashes (minus a negative = plus). [TOTAL Row] The adjusted weights are summed for each poll result and the adjusted poll results for each candidate are multiplied by the poll weight and then summed. Each candidate's poll sum is divided by their weight sum to give the total.

Poll	Mid Date	Time Weight	Internal	John F. Kerry John F. Kerry	George W. Bush	Walter F. "Walt" Brown	David K. Cobb	Michael Badnarik	Michael A. Peroutka	Ralph Nader
Zogby International	10/31	X 1.00000		52.0000 - 0.8870 bias	45.0000 - 0.0434 bias
Survey USA	10/30	X 0.98333		50.0000 - 0.5274 bias	47.0000 - 0.3265 bias
Mason-Dixon	10/29	X 0.96667		47.0000 - 0.4277 bias	45.0000 - 0.8543 bias
Rasmussen Reports	10/29	X 0.96667		50.0000 - 0.4180 bias	47.0000 - 1.5977 bias
Mitchell Research & Communications	10/28	X 0.95000		46.0000 - 1.8111 bias	40.0000 - -0.3165 bias					2.0000 - 1.7761 bias
Research 2000	10/27	X 0.93333		50.0000 - 1.1463 bias	46.0000 - 0.1379 bias					1.0000 - 0.5343 bias
EPIC/MRA	10/21	X 0.83333		49.0000 - 0.7445 bias	43.0000 - 0.7895 bias					1.0000 - 3.0429 bias
Detroit News	10/19	X 0.80000		43.0000 - 2.1973 bias	47.0000 - -1.6854 bias					1.0000 - 0.6022 bias
Strategic Vision (R)	10/14	X 0.71667		48.0000 - -0.4798 bias	40.0000 - 1.1151 bias					1.0000 - 0.6269 bias
Zogby Interactive	10/6	X 0.58333		54.1000 - 0.0637 bias	44.4000 - 0.8374 bias					0.3000 - -0.1930 bias
Free Press	9/28	X 0.45000		48.0000 - 2.6293 bias	46.0000 - -1.5581 bias
Marketing Resource Group	9/24	X 0.38333		45.0000 - 1.9320 bias	43.0000 - -1.2748 bias					1.0000 - 0.6269 bias
Opinion Dynamics (FOX)	9/22	X 0.35000		46.0000 - -0.8684 bias	44.0000 - 1.7926 bias					1.0000 - 2.3275 bias
FOX News	9/22	X 0.35000		46.0000 - -0.1896 bias	44.0000 - 0.9686 bias					1.0000 - 0.6022 bias
American Research Group	9/21	X 0.33333		48.0000 - -0.0031 bias	40.0000 - 0.7892 bias					1.0000 - 0.6269 bias
Gallup	9/13	X 0.20000		50.0000 - -2.6491 bias	44.0000 - 2.8840 bias					1.0000 - 0.5560 bias
TOTAL				47.725364	44.020698	0.000000	0.000000	0.000000	0.000000	-0.023480