. with new NBC and Pew polls added chronologically ...
Weighted 4-Poll Rolling Averages of the latest
20+ Polls listed at RCP [as of Dec 13th]
plus
YouGov polls 12/3, 11/26 11/19, 11/12, 11/5, 10/29, 10/22, 10/15, 10/08, &
Poll Position 12/11, 12/04, 11/27, 11/22, 11/8, 11/1 polls inserted chronologically
Also the 11/9 - 11/14 Pew poll was broken into two, (3-day) polls
(Example methodology for this chart will be on my profile page)
Much like what the government does with unemployment statistics, this chart represents a 4-poll "rolling average" for the latest 20+ polls listed at RealClearPolitics.com (plus other recent national polls). I also weighted the polls by their size. For example, a poll with a survey size of 1000 was weighted proportionately heavier than an 324 survey size.
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