2004 Senate · FL
InsiderAdvantage · fieldwork ended 2004-10-23 (10 days before the election) · 400 respondents · Live Phone
The poll said
Democrat 44% · Republican 46%
R+2.0
The certified result
Democrat 48.32% · Republican 49.43%
R+1.1
The arithmetic
- Poll margin = 44 − 46 = -2.00
- Actual margin = 48.321 − 49.434 = -1.113
- Signed miss = -2.00 − (-1.113) = -0.887
- Absolute miss = |-0.887| = 0.887
The poll overstated the Republican by 0.9 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 25153, race ID 1621 (538 database).