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finlep [7]
3 years ago
11

Researchers conducted a study to determine whether magnets are effective in treating back pain. Pain was measured using the visu

al analog​ scale, and the results given below are among the results obtained in the study. Higher scores correspond to greater pain levels. Is this study an experiment or an observational​ study?
Mathematics
1 answer:
Kay [80]3 years ago
6 0

Answer:

10 step

Step-by-step explanation:

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