Which of the following is a true statement of observational data? a. It is always qualitative, not quantitative. b. It is used to form hypotheses, but not to test them. c. It can include comparisons of fossils as well as DNA sequences. d. It is the type of data used for the independent variable in a controlled experiment.
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Step 1: Observational data is data collected through observation without any manipulation of variables. Show more…
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