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2016 Senate · IN

Public Opinion Strategies · fieldwork ended 2016-11-02 (6 days before the election) · 600 respondents · Live Phone

The poll said

Democrat 41% · Republican 46%

R+5.0

The certified result

Democrat 42.41% · Republican 52.11%

R+9.7

The arithmetic

  1. Poll margin = 41 − 46 = -5.00
  2. Actual margin = 42.413 − 52.112 = -9.699
  3. Signed miss = -5.00 − (-9.699) = 4.700
  4. Absolute miss = |4.700| = 4.700

The poll overstated the Democrat by 4.7 points and had the right leader.

Where these numbers come from

Poll and result: 538 raw_polls.csv. Poll ID 48333, race ID 78 (538 database).