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Can someone help me please? Students ask every 5th person to board the train what their favorite color is. Which type of study method is described in each situation? A. controll…

Can someone help me please? Students ask every 5th person to board the train what their favorite color is. Which type of study method is described in each situation? A. controll…
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Can someone help me please? Students ask every 5th person to board the train what their favorite color is. Which type of study method is described in each situation? A. controlled experiment B. survey C. observational study D. None of the above.

User Diego Serrano
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I think it would be B because they are asking the students their opinions.
User Sapenov
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