decide if each of the following describe an observational study or an experimentselect an answer

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Hello everyone in this question we are given that 20 patients with leukemia are divided into two

So identity, identify the study being either observational or experimental. So subjects were ran

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Decide if each of the following describes an observational study or an experiment. Select an answer: Experiment or Observational Study. The hair color of shoppers at the mall was recorded. Select an answer: Observational Study. A drug is given to a group of people, and their reactions are observed. Select an answer: Experiment. A group of students is told to listen to music while taking a test, and their results are compared to a group not listening to music. Select an answer: Experiment. The temperature on randomly selected days throughout the year was measured. Select an answer: Observational Study. The gender of children born in January was tallied. Select an answer: Observational Study. The growth rate of bacteria is compared before and after adding alcohol. Select an answer: Experiment.

          Decide if each of the following describes an observational study or an experiment. Select an answer: Experiment or Observational Study.
    
    The hair color of shoppers at the mall was recorded. Select an answer: Observational Study.
    
    A drug is given to a group of people, and their reactions are observed. Select an answer: Experiment.
    
    A group of students is told to listen to music while taking a test, and their results are compared to a group not listening to music. Select an answer: Experiment.
    
    The temperature on randomly selected days throughout the year was measured. Select an answer: Observational Study.
    
    The gender of children born in January was tallied. Select an answer: Observational Study.
    
    The growth rate of bacteria is compared before and after adding alcohol. Select an answer: Experiment.

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