Question: Is this a randomized experiment or an observational study? Explain how you know. Is hand span a good predictor of how much candy you can

Is this a randomized experiment or an observational study? Explain how you know.

Is hand span a good predictor of how much candy you can grab? Using 45 college students as subjects, researchers set out to explore whether a linear relationship exists between hand span (cm) and the number of Tootsie Rolls* each subject could grab.

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