Picking out three names randomly

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Select three students from a class to receive ice cream by putting all the students' names in a hat ad picking out three names randomly. Is it a observational study, sample survey or an experiment ? Why?

Reference no: EM131066715

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Picking out three names randomly : Select three students from a class to receive ice cream by putting all the students' names in a hat ad picking out three names randomly. Is it a observational study, sample survey or an experiment ? Why?
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