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13 March, 04:07

Identify the sampling technique used for the following study. First, the population is subdivided by class. Then a quality assurance analyst uses a random number generator to select five members from each class to study.

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  1. 13 March, 04:56
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    Stratified Sampling

    Step-by-step explanation:

    Stratified sampling, the population is first divided into small subgroups or strata based on similarity or characteristics in such a way that the elements within the group are the similar and different among the other subgroups formed. Then, the elements are randomly selected from each of these subgroups or strata.
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