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Buying a New Phone: Sampling

If Laurel was interested in what proportion of the U.S. population could bend a WePhone 10S at least 1 degree with their hands, which group would serve as a better sample?

This exercise is part of the course

Causal Inference with R - Experiments

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Exercise instructions

Perfect strangers in Laurel's neighborhood,Perfect strangers across the world,Perfect strangers in Laurel's town,Perfect strangers across the U.S.

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