Question: Determine whether the description corresponds to an observational study or an experiment. Fifty patients with colon cancer are divided into two groups. One group receives

Determine whether the description corresponds to an observational study or an experiment. Fifty patients with colon cancer are divided into two groups. One group receives an experimental drug to fight cancer comma the other a placebo. After one year comma the spread of the cancer is measured. Question content area bottom Part 1 Does the description correspond to an observational study or an experiment

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