2 years ago

Which situation is an example of an observational study?

Mathematics

2 answers:

user100 [1]2 years ago

6 0

Answer:

Step-by-step explanation:

CaHeK987 [17]2 years ago

4 0

Answer:

D- Recording the reaction time of participants in a study who were asked to press a button as soon as they see a certain picture on a screen.

Step-by-step explanation:

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