Ending Dates
of the poll |
Average (in Obama’s
lead over McCain) |
Variance (in the Obama
advantage over McCain) |
No. of Polls |
| Nov 1–3 |
7.6 |
3.2 |
20 |
| Oct. 28–31 |
6.3 |
5.4 |
13 |
| Oct. 21–27 |
7.6 |
8.3 |
29 |
| Oct. 14–20 |
6.3 |
5.7 |
21 |
| Oct. 7–13 |
7.9 |
6.9 |
25 |
| Oct. 1–6 |
6.3 |
7.9 |
18 |
| OCTOBER |
7.3 |
7.5 |
106 |