2012 President · VA
Zogby Analytics · fieldwork ended 2012-10-27 (10 days before the election) · 827 respondents · Online Panel
The poll said
Democrat 48.1% · Republican 46%
D+2.1
The certified result
Democrat 51.16% · Republican 47.28%
D+3.9
The arithmetic
- Poll margin = 48.1 − 46 = 2.10
- Actual margin = 51.156 − 47.283 = 3.873
- Signed miss = 2.10 − (3.873) = -1.773
- Absolute miss = |-1.773| = 1.773
The poll overstated the Republican by 1.8 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 63880, race ID 698 (538 database).