2004 House · KS-4
SurveyUSA · fieldwork ended 2004-10-27 (6 days before the election) · 661 respondents · IVR
The poll said
Democrat 27% · Republican 67%
R+40.0
The certified result
Democrat 31.07% · Republican 66.11%
R+35.0
The arithmetic
- Poll margin = 27 − 67 = -40.00
- Actual margin = 31.074 − 66.110 = -35.036
- Signed miss = -40.00 − (-35.036) = -4.965
- Absolute miss = |-4.965| = 4.965
The poll overstated the Republican by 5.0 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 64291, race ID 3317 (538 database).