Poll Average Details- MN US President - 2012-11-06 20:00:00

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	Barack Obama Barack Obama	Mitt Romney	Gary Johnson	James E. Harris	Virgil H. Goode, Jr.	Jill Stein Harley G. Mikkelson	Ross C. "Rocky" Anderson	Will Christensen	Write-In	Jim Carlson	Peta Lindsay	Roseanne Barr	Andre Nigel Barnett	Tom Hoefling	Jill Reed	Dean Morstad	Barbara Ann Prokopich
Public Policy Polling	11/3	X 1.00000		53.0000 - 1.1680 bias	45.0000 - -0.1800 bias
YouGov	11/3	X 1.00000		50.0000 - 1.4134 bias	43.0000 - 0.0288 bias
NMB Research (R)	10/31	X 0.95000		45.0000 - -1.6254 bias	46.0000 - 5.6855 bias
Survey USA	10/28	X 0.90000		50.0000 - 0.5274 bias	43.0000 - 0.3265 bias
Mason-Dixon	10/25	X 0.85000		47.0000 - 0.4277 bias	44.0000 - 0.8543 bias
Rasmussen Reports	10/21	X 0.78333		51.0000 - 0.4180 bias	46.0000 - 1.5977 bias
Saint Cloud State University	10/21	X 0.78333		53.0000 - 2.5246 bias	45.0000 - -0.4630 bias
TOTAL				49.146727	43.392200	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000