2004 President · ME
SurveyUSA · fieldwork ended 2004-10-18 (15 days before the election) · 660 respondents · IVR
The poll said
Democrat 51% · Republican 45%
D+6.0
The certified result
Democrat 53.57% · Republican 44.58%
D+9.0
The arithmetic
- Poll margin = 51 − 45 = 6.00
- Actual margin = 53.573 − 44.576 = 8.997
- Signed miss = 6.00 − (8.997) = -2.996
- Absolute miss = |-2.996| = 2.996
The poll overstated the Republican by 3.0 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 4630, race ID 776 (538 database).