2012 Senate · NY
SurveyUSA · fieldwork ended 2012-10-24 (13 days before the election) · 554 respondents · IVR/Online Panel
The poll said
Democrat 64% · Republican 22%
D+42.0
The certified result
Democrat 62.11% · Republican 21.28%
D+40.8
The arithmetic
- Poll margin = 64 − 22 = 42.00
- Actual margin = 62.109 − 21.283 = 40.826
- Signed miss = 42.00 − (40.826) = 1.175
- Absolute miss = |1.175| = 1.175
The poll overstated the Democrat by 1.2 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 30372, race ID 1492 (538 database).