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Identify the Study as an Observational Study or a Designed

Question 82

Multiple Choice

Identify the study as an observational study or a designed experiment.
-At one hospital in 1992, 674 women were diagnosed with breast cancer. Five years later, 88% of the Caucasian women and 83% of the African American women were still alive.


A) Designed experiment
B) Observational study

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