Biology, 04.02.2020 02:49 beetle1234
In a study of how vitamin e may reduce the risk of cardiovascular disease, one group was given a placebo, and the other group was given vitamin e supplements. the group that received the placebo was the group.
a. control
b. experimental
c. double-blind
d. hypothetical
Answers: 3
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In a study of how vitamin e may reduce the risk of cardiovascular disease, one group was given a pla...
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