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2016 Senate · NC

Rasmussen Reports · fieldwork ended 2016-10-21 (18 days before the election) · 875 respondents · IVR/Online Panel

The poll said

Democrat 44% · Republican 46%

R+2.0

The certified result

Democrat 45.37% · Republican 51.06%

R+5.7

The arithmetic

  1. Poll margin = 44 − 46 = -2.00
  2. Actual margin = 45.366 − 51.062 = -5.696
  3. Signed miss = -2.00 − (-5.696) = 3.696
  4. Absolute miss = |3.696| = 3.696

The poll overstated the Democrat by 3.7 points and had the right leader.

Where these numbers come from

Poll and result: 538 raw_polls.csv. Poll ID 47352, race ID 62 (538 database).