2010 Governor · CT
Scott Rasmussen (Rasmussen Reports) · fieldwork ended 2010-10-14 (19 days before the election) · 500 respondents · IVR
The poll said
Democrat 49% · Republican 45%
D+4.0
The certified result
Democrat 47.21% · Republican 48.95%
R+1.7
The arithmetic
- Poll margin = 49 − 45 = 4.00
- Actual margin = 47.213 − 48.950 = -1.737
- Signed miss = 4.00 − (-1.737) = 5.737
- Absolute miss = |5.737| = 5.737
The poll overstated the Democrat by 5.7 points and had the wrong leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 32567, race ID 1280 (538 database).