2016 Senate · OH
SurveyMonkey · fieldwork ended 2016-11-04 (4 days before the election) · 2,860 respondents · Online Panel
The poll said
Democrat 39% · Republican 57%
R+18.0
The certified result
Democrat 37.16% · Republican 58.03%
R+20.9
The arithmetic
- Poll margin = 39 − 57 = -18.00
- Actual margin = 37.158 − 58.029 = -20.871
- Signed miss = -18.00 − (-20.871) = 2.871
- Absolute miss = |2.871| = 2.871
The poll overstated the Democrat by 2.9 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 48895, race ID 67 (538 database).