Roughly 80-90% of polling errors come from sample skews rather than from sampling (random) error.

factualpending

Speaker

Doug Rivers

Evidence Quote

there are these skews that probably account for 80 percent maybe nine [ty] percent of the errors

Source

Doug Rivers on polling 7/21/2008EconTalk
Created: 6/15/2026, 9:28:54 AM

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