2006 Senate · MO
Scott Rasmussen (Rasmussen Reports) · fieldwork ended 2006-10-25 (13 days before the election) · 500 respondents · IVR
The poll said
Democrat 48% · Republican 50%
R+2.0
The certified result
Democrat 49.58% · Republican 47.31%
D+2.3
The arithmetic
- Poll margin = 48 − 50 = -2.00
- Actual margin = 49.578 − 47.308 = 2.270
- Signed miss = -2.00 − (2.270) = -4.270
- Absolute miss = |-4.270| = 4.270
The poll overstated the Republican by 4.3 points and had the wrong leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 24524, race ID 1594 (538 database).