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2013 Governor · VA

Quinnipiac University · fieldwork ended 2013-10-18 (18 days before the election) · 1,085 respondents · Live Phone

The poll said

Democrat 46% · Republican 39%

D+7.0

The certified result

Democrat 47.74% · Republican 45.22%

D+2.5

The arithmetic

  1. Poll margin = 46 − 39 = 7.00
  2. Actual margin = 47.736 − 45.217 = 2.519
  3. Signed miss = 7.00 − (2.519) = 4.482
  4. Absolute miss = |4.482| = 4.482

The poll overstated the Democrat by 4.5 points and had the right leader.

Where these numbers come from

Poll and result: 538 raw_polls.csv. Poll ID 63970, race ID 1257 (538 database).