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  • one year ago

Please help!! A coach 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 52 seconds. What type of study is this Double-blind study Experiment Randomized Trial Observational study

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  1. anonymous
    • one year ago
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    experiment since it is based on real data.

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spraguer (Moderator)
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