2014 Senate · SC
YouGov · fieldwork ended 2014-10-20 (15 days before the election) · 1,566 respondents · Online Panel
The poll said
Democrat 28% · Republican 57%
R+29.0
The certified result
Democrat 38.01% · Republican 60.15%
R+22.1
The arithmetic
- Poll margin = 28 − 57 = -29.00
- Actual margin = 38.014 − 60.151 = -22.137
- Signed miss = -29.00 − (-22.137) = -6.863
- Absolute miss = |-6.863| = 6.863
The poll overstated the Republican by 6.9 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 33798, race ID 36 (538 database).