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Gravis Marketing Bias

Gravis Marketing Bias: Since last Tuesday, political junkies have been doing this with a Gravis Marketing poll that got 96 percentage points of a Maryland Congressional race wrong.

Gravis Marketing Bias
Gravis Marketing Bias

A January survey carried out by Michael Smigiel, leading Rep. Andy Harris, reported a loss of 67 percentage points, or 78% to 11%, by 29 percentage points in their key Republican rivalry.

Philip Bump of the Fix explained the falls in detail last summer since Trump carried out a Gravis survey, which is said to have been shown by Hispanics to be very famous.

Gravis Marketing Bias

The problem lies mainly in the fact that many voters do not rely heavily on fixed lines to administer automated telephone questionnaires with very low response rates.

Gravis Marketing Bias
Gravis Marketing Bias