2010 Senate · WV
Scott Rasmussen (Rasmussen Reports) · fieldwork ended 2010-10-31 (2 days before the election) · 750 respondents · IVR
The poll said
Democrat 50% · Republican 46%
D+4.0
The certified result
Democrat 53.47% · Republican 43.40%
D+10.1
The arithmetic
- Poll margin = 50 − 46 = 4.00
- Actual margin = 53.469 − 43.403 = 10.066
- Signed miss = 4.00 − (10.066) = -6.066
- Absolute miss = |-6.066| = 6.066
The poll overstated the Republican by 6.1 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 32811, race ID 1543 (538 database).