Mathematics, 10.09.2019 22:30 mag331

Acoach wants to see how long the members of the swim team can hold their breath. he times each member and finds that the average is 48 seconds. what type of study is this?
observational study
randomized trial
experiment
double-blind study

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Acoach wants to see how long the members of the swim team can hold their breath. he times each membe...

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