2004 Senate · CO
Zogby Analytics · fieldwork ended 2004-10-26 (7 days before the election) · 600 respondents · Live Phone
The poll said
Democrat 53% · Republican 42%
D+11.0
The certified result
Democrat 51.30% · Republican 46.53%
D+4.8
The arithmetic
- Poll margin = 53 − 42 = 11.00
- Actual margin = 51.303 − 46.533 = 4.770
- Signed miss = 11.00 − (4.770) = 6.230
- Absolute miss = |6.230| = 6.230
The poll overstated the Democrat by 6.2 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 25366, race ID 1619 (538 database).