2016 President · AZ
YouGov · fieldwork ended 2016-10-20 (19 days before the election) · 1,567 respondents · Online Panel
The poll said
Democrat 37.8% · Republican 46.3%
R+8.5
The certified result
Democrat 45.13% · Republican 48.67%
R+3.5
The arithmetic
- Poll margin = 37.8 − 46.3 = -8.50
- Actual margin = 45.125 − 48.670 = -3.545
- Signed miss = -8.50 − (-3.545) = -4.954
- Absolute miss = |-4.954| = 4.954
The poll overstated the Republican by 5.0 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 48721, race ID 605 (538 database).