2000 House · WA-1
SurveyUSA · fieldwork ended 2000-10-21 (17 days before the election) · 500 respondents · IVR
The poll said
Democrat 52% · Republican 45%
D+7.0
The certified result
Democrat 54.55% · Republican 42.65%
D+11.9
The arithmetic
- Poll margin = 52 − 45 = 7.00
- Actual margin = 54.552 − 42.650 = 11.902
- Signed miss = 7.00 − (11.902) = -4.902
- Absolute miss = |-4.902| = 4.902
The poll overstated the Republican by 4.9 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 64264, race ID 2695 (538 database).