2012 President · NV
Gravis Marketing · fieldwork ended 2012-10-24 (13 days before the election) · 955 respondents · IVR
The poll said
Democrat 50% · Republican 49%
D+1.0
The certified result
Democrat 52.36% · Republican 45.67%
D+6.7
The arithmetic
- Poll margin = 50 − 49 = 1.00
- Actual margin = 52.356 − 45.675 = 6.681
- Signed miss = 1.00 − (6.681) = -5.681
- Absolute miss = |-5.681| = 5.681
The poll overstated the Republican by 5.7 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 30323, race ID 686 (538 database).