2003 Governor · CA
Gallup · fieldwork ended 2003-09-26 (11 days before the election) · 581 respondents · Live Phone
The poll said
Democrat 25% · Republican 40%
R+15.0
The certified result
Democrat 31.47% · Republican 48.58%
R+17.1
The arithmetic
- Poll margin = 25 − 40 = -15.00
- Actual margin = 31.473 − 48.583 = -17.110
- Signed miss = -15.00 − (-17.110) = 2.110
- Absolute miss = |2.110| = 2.110
The poll overstated the Democrat by 2.1 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 12589, race ID 1380 (538 database).