In media reports, I often see journalists asking opinions from passengers on the road. They pick a casual person each time. Is it a random sampling method? Can we use it in program evaluation?
In media reports, I often see journalists asking opinions from passengers on the road. They pick a casual person each time. Is it a random sampling method? Can we use it in program evaluation?
2021年4月28日
3個回覆,43個月前
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