Determine whether an observational study or an experimental study is used. In a public park, visitors were asked how many minutes a day they walked their dogs. Observational

In the scenario described, an observational study is indeed used. Here's the reasoning: 1. **Definition of Observational Study**: In an observational study, researchers observe subjects without manipulating any variables. They collect data based on what the subjects do naturally. 2. **Definition of Experimental Study**: In an experimental study, researchers actively intervene by manipulating one or more variables to observe the effect of that manipulation on other variables. 3. **Analysis of the Scenario**: - In the public park, visitors are simply asked about their dog-walking habits. The researchers are not influencing or changing any conditions; they are merely collecting information based on the visitors' responses. - There is no intervention or treatment applied to the visitors; they are not assigned to different groups or conditions. Therefore, since the researchers are only observing and collecting data without any manipulation, this is classified as an observational study.