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SAT, 28.02.2021 18:10 jefarmjefarm9659

A researcher selects a sample from a district such that 25% of the children are between ages 5 and 6, 25% are between ages 7 and 8, 25% are between 9 and 10, and 25% are between ages 11 and 12. The researcher is employing a sampling.

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