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Unrepresentative Sample

September 22nd, 2009

Taxonomy – Where am I?

Unrepresentative Sample

classification : informal – weak analogy fallacies

A sampling offered as a basis for inductive inference that is unrepresentative of that thing’s distribution in the universe.

Foundations

When one argues a statistically invalid sample as foundation for an otherwise unwarranted conclusion.

Examples

I asked four people in the street and three liked red. 75% of people like red.

While many who study the nation’s economic health agree that a recession has already begun, and that it may be long and severe, they also say the odds of a full-blown depression are almost nonexistent. ( The question is how many is many and what were their qualifications? )

Other Names

Biased Sample

The Volvo Fallacy

Statistical Inference

Hasty Generalization

Categories: Logic
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