2002 Senate · OK
SurveyUSA · fieldwork ended 2002-10-30 (6 days before the election) · 710 respondents · IVR
The poll said
Democrat 35% · Republican 52%
R+17.0
The certified result
Democrat 36.31% · Republican 57.30%
R+21.0
The arithmetic
- Poll margin = 35 − 52 = -17.00
- Actual margin = 36.310 − 57.302 = -20.992
- Signed miss = -17.00 − (-20.992) = 3.992
- Absolute miss = |3.992| = 3.992
The poll overstated the Democrat by 4.0 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 54881, race ID 1673 (538 database).