2010 Governor · GA
Landmark Communications · fieldwork ended 2010-10-27 (6 days before the election) · 1,686 respondents · IVR
The poll said
Democrat 41.6% · Republican 48.5%
R+6.9
The certified result
Democrat 42.97% · Republican 53.02%
R+10.0
The arithmetic
- Poll margin = 41.6 − 48.5 = -6.90
- Actual margin = 42.971 − 53.018 = -10.047
- Signed miss = -6.90 − (-10.047) = 3.147
- Absolute miss = |3.147| = 3.147
The poll overstated the Democrat by 3.1 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 52963, race ID 1282 (538 database).