when each subgroup within a population is equally represented and individuals are chosen at random from within the subgroups, we call it a

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tyrinia23ov95d9 tyrinia23ov95d9

22-01-2018
Mathematics

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when each subgroup within a population is equally represented and individuals are chosen at random from within the subgroups, we call it a

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joaobezerra joaobezerra · Answer 1 · 2022-05-31T10:28:12+02:00

Using sampling concepts, it is found that we call it a stratified random sample, hence option A is correct.

How are samples classified?

Samples may be classified as:

Convenient: Drawn from a conveniently available pool.

Random: All the options into a hat and drawn some of them.

Systematic: Every kth element is taken.

Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.

Stratified: Also divides the population into groups. Then, a equal proportion of each group is surveyed.

In this problem, the population is divided into groups, and then an equal proportion of each group is taken, hence stratified random sampling is used, and option A is correct.

More can be learned about sampling concepts at https://brainly.com/question/25122507

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