Question: Identify the sampling technique used in each study. Explain your reasoning. (a) A journalist goes to a campground to ask people how they feel about

Identify the sampling technique used in each study. Explain your reasoning.

(a) A journalist goes to a campground to ask people how they feel about air pollution.

(b) For quality assurance, every tenth machine part is selected from an assembly line and measured for accuracy.

(c) A study on attitudes about smoking is conducted at a college.The students are divided by class (freshman, sophomore, junior, and senior). Then a random sample is selected from each class and interviewed.

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