2010 Senate · HI
Scott Rasmussen (Rasmussen Reports) · fieldwork ended 2010-10-13 (20 days before the election) · 500 respondents · IVR
The poll said
Democrat 53% · Republican 40%
D+13.0
The certified result
Democrat 74.81% · Republican 21.57%
D+53.2
The arithmetic
- Poll margin = 53 − 40 = 13.00
- Actual margin = 74.809 − 21.571 = 53.238
- Signed miss = 13.00 − (53.238) = -40.237
- Absolute miss = |-40.237| = 40.237
The poll overstated the Republican by 40.2 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 32572, race ID 1516 (538 database).