anonymous
  • anonymous
Determine whether the description corresponds to an observational study or an experiment. Sixty patients with hearing loss are divided into two groups. One group receives an experimental treatment, the other a placebo. After three months, hearing acuity is measured. Does the description correspond to an observational study or an experiment?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
experiment

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