[muawiyah]

It's a variation of 3% only if the special interests answer the phone at the same frequency as the ordinary people ~ but they don't ~ particularly if they are tipped off about the survey.

If the special interests ALWAYS answer the phone and the ordinary people only answer 9% of the time, the special interests effectively create 11X the response rate for themselves than that created by the ordinary people.

That 3% becomes 11X 3%, or 33%.

[JCBreckenridge]

“That 3% becomes 11X 3%, or 33%.”

The odds of that happening over this large a sample are higher than your chances of winning the jackpot at Vegas with three playboy bunnies over your shoulder. Twice.