To survey a town about traffic concerns, Henry divided the town into eight regions and randomly chose 10 households from each region. What type of sample did she form?

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Mathematics

Bianca Pittman

9 July, 05:16

To survey a town about traffic concerns, Henry divided the town into eight regions and randomly chose 10 households from each region. What type of sample did she form?

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Bennett Sutton · Answer 1

Given that Henry divided the town into eight regions and randomly chose 10 households from each region in order to survey about traffic concerns. This type of sample is called stratified sampling.

Stratified sampling is a type of sampling method where the researcher divides the population into separate groups, called strata and then, a probability sample (often a simple random sample) is drawn from each group.