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What do political polls really tell us? A Texas professor explains how to read the numbers

What do political polls really tell us? A Texas professor explains how to read the numbers
Photo: KPRC 2 Click2Houston (NBC) - Local · view original

A candidate leads by two percentage points in a new poll. Does that mean they’re ahead in the race? Not necessarily. Political polls offer a snapshot of public opinion at a particular moment, but understanding what those numbers mean requires looking beyond the headline. Sample size, margin of er...

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