American Government / Unit 4 Gov 170 short lesson, about 20 seconds
ERROR: "A Bigger Sample Beats a Random Sample"
Captions available
The idea
The claim that a bigger sample beats a random sample is false: a biased sample stays biased at any size.
In practice
In 1936 Literary Digest collected millions of responses and still called the presidential election wrong.
Where people slip
Size shrinks the margin of error only after randomness has done its work.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
- Nothing yet depends on this.
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