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2006 Senate · NV

YouGov · fieldwork ended 2006-10-31 (7 days before the election) · 402 respondents · Online Panel

The poll said

Democrat 42% · Republican 53%

R+11.0

The certified result

Democrat 40.99% · Republican 55.36%

R+14.4

The arithmetic

  1. Poll margin = 42 − 53 = -11.00
  2. Actual margin = 40.990 − 55.358 = -14.368
  3. Signed miss = -11.00 − (-14.368) = 3.368
  4. Absolute miss = |3.368| = 3.368

The poll overstated the Democrat by 3.4 points and had the right leader.

Where these numbers come from

Poll and result: 538 raw_polls.csv. Poll ID 24890, race ID 1597 (538 database).