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View Diary: Daily Kos Elections Morning Digest: GOPer Scott DesJarlais pushed mistress/patient to have abortion (161 comments)

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  •  Cumulative Margin of Error (1+ / 0-)
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    Christopher Walker

    One thing to note about "Marge Inoverra" (Click & Clack's staff statistician, if you don't recognize her) is that when you take several polls that each have a certain MoE and combine their results, the sample is larger than thus the margin is smaller.  So while Obama may be within MoE, if it is a consistent result, the effective MoE is reduced.  

    If on the other hand the polls are inconsistent... then go ask Marge, as I'm not a statistician.

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