Mathematics, 24.07.2019 03:00 mistyshaw3736

Acoach wants to see how long the members of the water polo team can hold their breath. he times each member and finds that the average is 45 seconds. what type of study is this? experiment observational study randomized trial double-blind study

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