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2024 Senate · Michigan

Marist College · fieldwork ended 2024-10-30 (6 days before the election) · 1,356 respondents · Live Phone/Online Opt-In Panel/Text-to-Web

The poll said

Democrat 51% · Republican 47%

D+4.0

The certified result

Democrat 48.64% · Republican 48.30%

D+0.3

The arithmetic

  1. Poll margin = 51 − 47 = 4.00
  2. Actual margin = 48.639 − 48.298 = 0.341
  3. Signed miss = 4.00 − (0.341) = 3.659
  4. Absolute miss = |3.659| = 3.659

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

Where these numbers come from

Poll and result: 538 senate_polls_historical.csv (archived 2025-03-06). Poll ID 89161, race ID 9515 (538 database).

This poll asked 2 versions of the question for this race; one is scored (largest sample) so the poll counts once.

population: rv