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Why do you think that cluster sampling is frequently used in practice.

Scullion

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7 years ago

Why do you think that cluster sampling is frequently used in practice.

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JoannaMills

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7 years ago Edited: 7 years ago, bio_man

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leesajohnson

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7 years ago Edited: 7 years ago, leesajohnson

Cluster sampling refers to a sampling method that has the following properties.
The population is divided into N groups, called clusters.
The researcher randomly selects n clusters to include in the sample.
The number of observations within each cluster Mi is known, and M = M1 + M2 + M3 + ... + MN-1 + MN.
Each element of the population can be assigned to one, and only one, cluster.
Two types of cluster sampling methods
One-stage sampling. All of the elements within selected clusters are included in the sample.
Two-stage sampling. A subset of elements within selected clusters is randomly selected for inclusion in the sample.You can check another way-
https://en.wikipedia.org/wiki/Cluster_sampling

For example you can select individuals from the voters list in each stratum say rural and urban. You can have villages or urban wards selected from the strata which has both stratification and cluster sampling.

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Scullion Author

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7 years ago

My exam is literally tomorrow!

thanks

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JoannaMills

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7 years ago

Good luck on your exam!

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