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zvonat [6]
3 years ago
6

What is observational classification

Biology
2 answers:
ladessa [460]3 years ago
7 0

Answer:

Three types of observational studies include cohort studies, case-control studies, and cross-sectional studies

Rom4ik [11]3 years ago
6 0
Where you observe, or study, something then organize it into categories
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