Determine whether the following should be classified as simple random, systemati

Question

Determine whether the following should be classified as simple random, systematic, convenience, stratified, or cluster sampling. 1. Every 15th person who enters a local store is selected and asked questions regarding the cleanliness of the store 2. Ten students from every 8:00 MWF math class at Tech are selected to complete a survey 3. Five students from every dorm on campus are selected 4. A researcher goes to the library to collect some published data

I thought it was systematic, startified, cluster, and convenience but that's not it

Explanation / Answer

1. Every 15th person who enters a local store is selected and asked questions: Systematic sampling.

2. Ten students from every 8.00 MWF maths class is selected: convenience sampling.

3. 5 students from every dorm on campus are selected : simple random sampling.

4. A researcher goes to the library to collect some published data: stratified sampling

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