2002 Senate · OK
SurveyUSA · fieldwork ended 2002-10-15 (21 days before the election) · 710 respondents · IVR
The poll said
Democrat 37% · Republican 53%
R+16.0
The certified result
Democrat 36.31% · Republican 57.30%
R+21.0
The arithmetic
- Poll margin = 37 − 53 = -16.00
- Actual margin = 36.310 − 57.302 = -20.992
- Signed miss = -16.00 − (-20.992) = 4.992
- Absolute miss = |4.992| = 4.992
The poll overstated the Democrat by 5.0 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 54879, race ID 1673 (538 database).