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Natalija [7]
3 years ago
13

BRAINLIESTTT ASAP! PLEASE HELP ME :)

Mathematics
2 answers:
dem82 [27]3 years ago
5 0

Answer:

observational study.

Step-by-step explanation:

balu736 [363]3 years ago
4 0

Answer:

observational study

Step-by-step explanation:

This situation calls for an observational study.  Unfortunately, cardiovascular health is difficult to measure unless one defines some "health scale" so that health could be roughly quantitized.

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