2010 House · FL-25
Susquehanna Polling & Research Inc. · fieldwork ended 2010-10-25 (8 days before the election) · 700 respondents · IVR
The poll said
Democrat 43% · Republican 44%
R+1.0
The certified result
Democrat 42.59% · Republican 52.15%
R+9.6
The arithmetic
- Poll margin = 43 − 44 = -1.00
- Actual margin = 42.589 − 52.147 = -9.558
- Signed miss = -1.00 − (-9.558) = 8.558
- Absolute miss = |8.558| = 8.558
The poll overstated the Democrat by 8.6 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 51730, race ID 4571 (538 database).