2008 President · NH
YouGov · fieldwork ended 2008-10-25 (10 days before the election) · 516 respondents · Online Panel
The poll said
Democrat 54% · Republican 40%
D+14.0
The certified result
Democrat 54.13% · Republican 44.52%
D+9.6
The arithmetic
- Poll margin = 54 − 40 = 14.00
- Actual margin = 54.127 − 44.521 = 9.606
- Signed miss = 14.00 − (9.606) = 4.395
- Absolute miss = |4.395| = 4.395
The poll overstated the Democrat by 4.4 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 16464, race ID 734 (538 database).