METHODS OF DATA COLLECTION
CONCEPT OF SAMPLING AND OTHER CONCEPTS RELATED TO SAMPLING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Marianne wanted to know students’ opinion on the new schedule at school. She survey’s the first 30 students who come into her class.
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Convenience Sampling
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Systematic Random Sampling
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Simple Random Sampling
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Volunteer response
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Explanation:
Detailed explanation-1: -A simple random sample is used to represent the entire data population and randomly selects individuals from the population without any other consideration. A stratified random sample, on the other hand, first divides the population into smaller groups, or strata, based on shared characteristics.
Detailed explanation-2: -Researchers use stratified sampling to ensure specific subgroups are present in their sample. It also helps them obtain precise estimates of each group’s characteristics. Many surveys use this method to understand differences between subpopulations better.
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