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Mountainguy

(2,145 posts)
11. It's called small sample sizes
Mon May 26, 2025, 09:07 PM
May 26

Subgroups in polls have much smaller samples than the overall population of the poll. That means their margins of error are much higher than the full poll. A poll with a MOE of 3 might have an MOE of ~10 with a given subgroup. So a number in a subgroup going from 38 to 44 between two polls can easily be explained by normal variation.

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