Write the word or phrase that best completes each statement or answers the question. Tell whether correlation is being used correctly. Identify any statistical errors. -A researcher obtained a random sample of

Write the word or phrase that best completes each statement or answers the question.
Tell whether correlation is being used correctly. Identify any statistical errors.
-A researcher obtained a random sample of women with children and a random sample of women without children and compared the rates of clinical depression in the two groups.
A) Experiment
B) Observational study

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