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4. A protein shake company is testing their new protein shake on college football players. They hypothesize that the shake will increase muscle mass by 25% in 60 days. What is the independent variable?
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4. A protein shake company is testing their new protein shake on college football players.

They hypothesize that the shake will increase muscle mass by 25% in 60 days. What is
the independent variable?
a. Muscle mass
C. diet
b. Time
d. protein shake

User Ran Sasportas
by
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1 Answer

7 votes
I would say it is D. Protein shake
User Horyun Lee
by
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