\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
Consider the function \(f: x \mapsto \dfrac{1}{\sqrt{x}}\).
Determine the mean value \(\mu\) of \(f\) on the interval \([1, 4]\) and provide a geometric interpretation of the result.
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