2012 President · MD
YouGov · fieldwork ended 2012-11-02 (4 days before the election) · 705 respondents · Online Panel
The poll said
Democrat 59% · Republican 37%
D+22.0
The certified result
Democrat 61.97% · Republican 35.90%
D+26.1
The arithmetic
- Poll margin = 59 − 37 = 22.00
- Actual margin = 61.974 − 35.898 = 26.076
- Signed miss = 22.00 − (26.076) = -4.076
- Absolute miss = |-4.076| = 4.076
The poll overstated the Republican by 4.1 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 30699, race ID 673 (538 database).