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2006 Governor · MN

Mason-Dixon Polling & Strategy · fieldwork ended 2006-10-28 (10 days before the election) · 625 respondents · Live Phone

The poll said

Democrat 44% · Republican 42%

D+2.0

The certified result

Democrat 45.73% · Republican 46.69%

R+1.0

The arithmetic

  1. Poll margin = 44 − 42 = 2.00
  2. Actual margin = 45.733 − 46.691 = -0.958
  3. Signed miss = 2.00 − (-0.958) = 2.958
  4. Absolute miss = |2.958| = 2.958

The poll overstated the Democrat by 3.0 points and had the wrong leader.

Where these numbers come from

Poll and result: 538 raw_polls.csv. Poll ID 24335, race ID 1345 (538 database).