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2010 Governor · FL

Susquehanna Polling & Research Inc. · fieldwork ended 2010-10-24 (9 days before the election) · 1,547 respondents · IVR

The poll said

Democrat 45% · Republican 47%

R+2.0

The certified result

Democrat 47.72% · Republican 48.87%

R+1.1

The arithmetic

  1. Poll margin = 45 − 47 = -2.00
  2. Actual margin = 47.722 − 48.871 = -1.149
  3. Signed miss = -2.00 − (-1.149) = -0.852
  4. Absolute miss = |-0.852| = 0.852

The poll overstated the Republican by 0.9 points and had the right leader.

Where these numbers come from

Poll and result: 538 raw_polls.csv. Poll ID 52936, race ID 1281 (538 database).