2014 Senate · AR
YouGov · fieldwork ended 2014-10-20 (15 days before the election) · 1,546 respondents · Online Panel
The poll said
Democrat 42% · Republican 47%
R+5.0
The certified result
Democrat 39.43% · Republican 56.50%
R+17.1
The arithmetic
- Poll margin = 42 − 47 = -5.00
- Actual margin = 39.430 − 56.497 = -17.067
- Signed miss = -5.00 − (-17.067) = 12.067
- Absolute miss = |12.067| = 12.067
The poll overstated the Democrat by 12.1 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 33811, race ID 32 (538 database).