2012 Senate · FL
Rasmussen Reports · fieldwork ended 2012-10-29 (8 days before the election) · 1,000 respondents · IVR
The poll said
Democrat 50% · Republican 46%
D+4.0
The certified result
Democrat 55.23% · Republican 42.23%
D+13.0
The arithmetic
- Poll margin = 50 − 46 = 4.00
- Actual margin = 55.232 − 42.226 = 13.006
- Signed miss = 4.00 − (13.006) = -9.006
- Absolute miss = |-9.006| = 9.006
The poll overstated the Republican by 9.0 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 30641, race ID 1477 (538 database).