The Fool's Poll- USA/CNN/Gallop

[JSJ]

Bunch of colluding criminal conspirators- I'd tell them to go to hell, but they'd count it as a likely vote for 'pinhead'.

[Pump Man]

1. cnn got super poll an average of 6 polls BUSH up by 3 that bullshit and th

vote----http://www.msnbc.msn.com/id/6092749

[ProfessorGAC]

2. That's Because. . .

. . .they don't properly weight the polls. You can't just do a simple arithmetic average of several polls. The sample size is effectively changing, and the margin of error of the average shrinks, so the data that enters (the actual numbers of 6 polls) becomes increasingly suspect.

In addition, with n=6, the effect of one poorly done poll, has undue influence on the other polls. The way they're doing it is mathematically invalid.
The Professor