Poll Average Details- MN Governor - 2010-11-02 18:00:00

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	Mark Dayton R. T. Rybak	Tom Emmer Leslie Davis	Tom Horner No Preference	Ken Pentel	T. Christopher Wright	Leslie Davis	Write-In	Peter Idusogie	Oloveuse S. "Ole" Savior	Farheen Hakeem No Candidate	John Uldrich	Linda S. Eno	Sherif Mansour
Public Policy Polling	10/29	X 1.00000		43.0000 - 0.2505 bias	40.0000 - -0.1911 bias	15.0000 - 1.1797 bias
Survey USA	10/27	X 0.96667		39.0000 - 0.0003 bias	38.0000 - 0.3321 bias	13.0000 - 0.2458 bias
Humphrey Institute/University of Minnesota	10/25	X 0.93333		41.0000 - 1.4918 bias	29.0000 - -1.4775 bias	11.0000 - 1.9238 bias
Public Opinion Strategies (R)	10/25	X 0.93333		40.0000 - -0.6163 bias	40.0000 - 2.6067 bias	13.0000 - 0.9371 bias
Princeton Survey Research Associates	10/21	X 0.86667		41.0000 - 1.4368 bias	34.0000 - -1.1956 bias	13.0000 - 0.7498 bias
Saint Cloud University	10/21	X 0.86667		40.0000 - 6.5182 bias	30.0000 - -3.5654 bias	19.0000 - 4.7569 bias
Rasmussen Reports	10/20	X 0.85000		44.0000 - 2.9187 bias	41.0000 - 1.5749 bias	10.0000 - 0.3537 bias
TOTAL				39.499769	36.320055	12.006141	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	0.000000