2010 Governor · GA
InsiderAdvantage · fieldwork ended 2010-10-24 (9 days before the election) · 2,119 respondents · IVR
The poll said
Democrat 41.1% · Republican 46.9%
R+5.8
The certified result
Democrat 42.97% · Republican 53.02%
R+10.0
The arithmetic
- Poll margin = 41.1 − 46.9 = -5.80
- Actual margin = 42.971 − 53.018 = -10.047
- Signed miss = -5.80 − (-10.047) = 4.247
- Absolute miss = |4.247| = 4.247
The poll overstated the Democrat by 4.2 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 52964, race ID 1282 (538 database).