Mathematics, 10.09.2019 08:10 gungamer720
For her science project, sofia is investigating the relationship between age and the effect of caffeine on heart rate. she assigns the 300 study participants to group a, group b, or group c. each group is given a beverage containing a different level of caffeine, and sofia measures each participant's heart rate before and after he or she consumes the caffeinated beverage. which of the following research methods is sofia
using?
Answers: 1
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For her science project, sofia is investigating the relationship between age and the effect of caffe...
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